Document and Entity Information Document - USD ($)	9 Months Ended
Document and Entity Information Document - USD ($)	Mar. 31, 2018	May 07, 2018	Dec. 31, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	KOSS CORP
Entity Central Index Key	0000056701
Current Fiscal Year End Date	--06-30
Entity Filer Category	Smaller Reporting Company
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		7,382,706
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 5,950,766

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Net sales	$ 4,326,674	$ 4,773,915	$ 16,277,181	$ 17,810,418
Cost of goods sold	3,363,121	3,823,613	11,753,719	12,711,146
Gross profit	963,553	950,302	4,523,462	5,099,272
Operating expenses:
Selling, general and administrative expenses	1,772,560	1,965,698	5,220,570	5,728,860
Unauthorized transaction related (recoveries) costs, net	(1,265)	39,663	(17,445)	73,759
Interest expense	0	0	5,218	964
(Loss) before income tax provision	(807,742)	(1,055,059)	(684,881)	(704,311)
Income tax provision	5,126	62,523	3,048,208	188,948
Net (loss)	$ (812,868)	$ (1,117,582)	$ (3,733,089)	$ (893,259)
Income (loss) per common share:
Basic	$ (0.11)	$ (0.15)	$ (0.51)	$ (0.12)
Diluted	$ (0.11)	$ (0.15)	$ (0.51)	$ (0.12)

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Mar. 31, 2018	Jun. 30, 2017
Current assets:
Cash and cash equivalents	$ 1,569,909	$ 432,283
Accounts receivable, less allowance for doubtful accounts of $58,960 and $55,872, respectively	3,008,988	3,931,541
Inventories	6,356,456	8,345,343
Prepaid expenses and other current assets	330,066	206,395
Income taxes receivable	26,863	32,814
Total current assets	11,292,282	12,948,376
Equipment and leasehold improvements, net	1,273,145	1,408,091
Other assets:
Deferred income taxes	0	3,042,257
Cash surrender value of life insurance	6,337,390	6,024,929
Total other assets	6,337,390	9,067,186
Total assets	18,902,817	23,423,653
Current liabilities:
Accounts payable	828,541	2,243,110
Accrued liabilities	1,507,422	1,149,395
Total current liabilities	2,335,963	3,392,505
Long-term liabilities:
Deferred compensation	2,319,636	2,294,418
Other liabilities	159,371	164,418
Total long-term liabilities	2,479,007	2,458,836
Total liabilities	4,814,970	5,851,341
Stockholders' equity:
Common stock, $0.005 par value, authorized 20,000,000 shares; issued and outstanding 7,382,706 shares	36,914	36,914
Paid in capital	5,669,334	5,420,710
Retained earnings	8,381,599	12,114,688
Total stockholders' equity	14,087,847	17,572,312
Total liabilities and stockholders' equity	$ 18,902,817	$ 23,423,653

CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($)	Mar. 31, 2018	Jun. 30, 2017
Allowance for doubtful accounts	$ 58,960	$ 55,872
Common stock, par value	$ 0.005	$ 0.005
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	7,382,706	7,382,706
Common stock, shares outstanding	7,382,706	7,382,706

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Document Fiscal Year Focus	2018
Operating activities:
Net (loss)	$ (3,733,089)	$ (893,259)
Adjustments to reconcile net (loss) to net cash provided by operating activities:
Provision for (recovery of) doubtful accounts	2,626	(4,843)
Loss on disposal of equipment and leasehold improvements	(343)	(6,230)
Depreciation of equipment and leasehold improvements	385,221	375,786
Stock-based compensation expense	248,624	265,568
Deferred income taxes	3,042,257	190,016
Change in cash surrender value of life insurance	(181,403)	(187,563)
Change in deferred compensation accrual	137,718	116,331
Deferred compensation paid	112,500	112,500
Net changes in operating assets and liabilities (see note 10)	1,729,505	761,846
Cash provided by operating activities	1,519,302	517,612
Investing activities:
Purchase of equipment and leasehold improvements	(250,618)	(365,081)
Life insurance premiums paid	(131,058)	(133,767)
Cash (used in) investing activities	(381,676)	(498,848)
Financing activities:
Net increase in cash and cash equivalents	1,137,626	18,764
Cash and cash equivalents at beginning of period	432,283	735,393
Cash and cash equivalents at end of period	$ 1,569,909	$ 754,157

CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Notes)	9 Months Ended
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Notes)	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Condensed Consolidated Financial Statements	CONDENSED CONSOLIDATED FINANCIAL STATEMENTS The condensed consolidated balance sheet of Koss Corporation (the "Company") as of June 30, 2017, has been derived from audited financial statements. The unaudited condensed consolidated financial statements presented herein are based on interim amounts. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) have been condensed or omitted. In the opinion of management, all adjustments (consisting of normal recurring accruals) necessary to present fairly the financial position, results of operations and cash flows for all periods presented have been made. The operating results for the nine months ended March 31, 2018, are not necessarily indicative of the operating results that may be experienced for the full fiscal year ending June 30, 2018. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Registrant’s Annual Report on Form 10-K for the fiscal year ended June 30, 2017.

NEW ACCOUNTING PRONOUNCEMENTS NEW ACCOUNTING PRONOUNCEMENTS (Notes)	9 Months Ended
	Mar. 31, 2018
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	NEW ACCOUNTING PRONOUNCEMENTS In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09 (Topic 606), Revenue from Contracts with Customers. This new standard supersedes nearly all existing revenue recognition guidance and provides a five-step analysis to determine when and how revenue is recognized. The underlying principle is to recognize revenue when promised goods or services transfer to the customer. The amount of revenue recognized will reflect the consideration expected to be received for those goods or services. The new standard also requires additional disclosures about the nature, amount, timing and uncertainty of revenues and cash flows arising from customer contracts. The standard permits the use of either the full or modified retrospective transition method. The Company will adopt the new standard in the first quarter of fiscal 2019 and anticipates using the full retrospective method. The Company has begun the assessment of the new revenue standard through review of customer contracts, identification of what performance obligations exist, and calculation of the required adjustments. The preliminary results of our assessment indicate that the Company expects an immaterial impact on its consolidated financial statements and related disclosures. The Company is continuing its assessment and may identify other impacts. In February 2016, the FASB issued ASU 2016-02 (Topic 842), Leases. This new standard revises existing lease guidance and requires all leases to be recorded on a company's balance sheet as right-of-use assets and lease liabilities. The new guidance also requires additional disclosures about leases. The Company plans to early adopt the new standard in the first quarter of fiscal 2019. The Company has begun the assessment of the new lease standard through review of lease contracts and calculation of the required adjustments. The preliminary result of our assessment is that the Company expects an immaterial impact on its consolidated statements of operations and a material impact as a result of recording the right-of-use asset and corresponding lease liability on the Company's consolidated balance sheets. The Company is continuing its assessment and may identify other impacts.

UNAUTHORIZED TRANSACTION RELATED COSTS AND RECOVERIES UNAUTHORIZED TRANSACTION RELATED COSTS AND RECOVERIES (Notes)

9 Months Ended

Mar. 31, 2018

Unauthorized Transaction Related Costs and Recoveries [Abstract]

Unauthorized Transaction Related Costs and Recoveries [Text Block]

UNAUTHORIZED TRANSACTION RELATED COSTS AND RECOVERIES

In December 2009, the Company learned of significant unauthorized transactions as previously reported. The Company has ongoing costs and recoveries associated with the unauthorized transactions. For the three and nine months ended March 31, 2017, the costs incurred were for legal fees related to claims initiated against a third party (see Note 13). For the three and nine months ended March 31, 2018 and 2017, the costs and recoveries were as follows:



	Three Months Ended						Nine Months Ended
	March 31						March 31
	2018			2017			2018			2017
Legal fees incurred	$	—		$	40,000		$	—		$	77,500
Proceeds from asset forfeitures	(1,265		)	(337		)	(17,445		)	(3,741		)
Unauthorized transaction related (recoveries) costs, net	$	(1,265	)	$	39,663		$	(17,445	)	$	73,759

INCOME TAXES (Notes)	9 Months Ended
INCOME TAXES (Notes)	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company files income tax returns in the United States federal jurisdiction and in several state jurisdictions. The statute of limitations for the Company’s federal tax returns for tax years beginning July 1, 2014 or later are open. For states in which the Company files state income tax returns, the statute of limitations is generally open for tax years ended June 30, 2014 and forward. On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (“the Tax Act”) was signed. The Tax Act significantly changed the income tax environment for US corporations, including the reduction of the US federal corporate tax rate from 35% to 21%. Accordingly, we remeasured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%. For the three and nine months ended March 31, 2018, the Company recorded an income tax expense of $5,126 and $3,048,208, respectively, compared to income tax expense of $62,523 and $188,948 for the three and nine months ended March 31, 2017, respectively. The income tax expense for the nine months ended March 31, 2018 includes $713,826 for the write-down of deferred income taxes due to the change in federal statutory tax rate as a result of the passage of the Tax Act. There was no tax expense in the three months ended March 31, 2018, related to the change in federal statutory tax rate. Income tax expense for the three and nine months ended March 31, 2018, also includes $187,846 and $2,429,235, respectively, related to the recording of a valuation allowance for all deferred tax assets. The valuation allowance was recorded due to uncertainty of the realizability of the deferred tax assets. The Company does not believe it has any unrecognized tax benefits as of March 31, 2018, and as of June 30, 2017. Any changes to the Company’s unrecognized tax benefits as of March 31, 2018, if recognized, would impact the effective tax rate.

CREDIT FACILITY (Notes)	9 Months Ended
CREDIT FACILITY (Notes)	Mar. 31, 2018
Debt Disclosure [Abstract]
Credit Facility	CREDIT FACILITY On May 12, 2010, the Company entered into a secured credit facility (“Credit Agreement”) with JPMorgan Chase Bank, N.A. (“Lender”). The Credit Agreement provided for an $8,000,000 revolving secured credit facility with interest rates either ranging from 0.0% to 0.75% over the Lender’s most recently publicly announced prime rate or 2.0% to 3.0% over LIBOR, depending on the Company’s leverage ratio. The Company pays a fee of 0.3% to 0.45% for unused amounts committed in the credit facility. On June 29, 2017, the Credit Agreement was amended to reduce the facility to $4,000,000 and to eliminate the financial covenants. On May 9, 2018, the Credit Agreement was amended to extend the expiration to July 31, 2019. In addition to the revolving loans, the Credit Agreement also provides that the Company may, from time to time, request the Lender to issue letters of credit for the benefit of the Company of up to a sublimit of $2,000,000 and subject to certain other limitations. The loan may be used only for general corporate purposes of the Company. The Company and the Lender also entered into the Pledge and Security Agreement dated May 12, 2010, under which the Company granted the Lender a security interest in substantially all of the Company’s assets in connection with the Company’s obligations under the Credit Agreement. The Company is currently in compliance with all covenants related to the Credit Agreement. As of March 31, 2018, and June 30, 2017, there were no outstanding borrowings on the facility. The Company incurs interest expense primarily related to its secured credit facility. Interest expense was $5,218 and $964 for the nine months ended March 31, 2018 and 2017, respectively. There was no interest expense in the three months ended March 31, 2018 and 2017.

INCOME (LOSS) PER COMMON AND COMMON STOCK EQUIVALENT SHARE (Notes)	9 Months Ended
	Mar. 31, 2018
Earnings Per Share, Basic and Diluted [Abstract]
Income (Loss) Per Common and Common Stock Equivalent Share	LOSS PER COMMON AND COMMON STOCK EQUIVALENT SHARE Basic loss per share is computed based on the weighted-average number of common shares outstanding. The weighted-average number of common shares outstanding was 7,382,706 for the periods ended March 31, 2018 and 2017. When dilutive, stock options are included in income per share as share equivalents using the treasury stock method. For the periods ended March 31, 2018 and 2017, there were no common stock equivalents related to stock option grants that were included in the computation of the weighted-average number of shares outstanding for diluted income per share. Shares issuable upon the exercise of outstanding options of 2,395,000 and 2,345,000 were excluded from the diluted weighted-average common shares outstanding for the periods ended March 31, 2018 and 2017, respectively, as they would be anti-dilutive.

STOCK OPTIONS (Notes)	9 Months Ended
STOCK OPTIONS (Notes)	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Options	STOCK OPTIONS The Company recognizes stock-based compensation expense for options granted under both the 1990 Flexible Incentive Plan and the 2012 Omnibus Incentive Plan. The stock-based compensation relates to stock options granted to employees and non-employee directors. In the nine months ended March 31, 2018, options to purchase 490,000 shares were granted under the 2012 Omnibus Incentive Plan at a weighted average exercise price of $1.89. In the nine months ended March 31, 2017, options to purchase 485,000 shares were granted under the 2012 Omnibus Incentive Plan at a weighted average exercise price of $2.33. Stock-based compensation expense during the three and nine months ended March 31, 2018 was $82,792 and $248,624, respectively. Stock-based compensation expense during the three and nine months ended March 31, 2017 was $88,523 and $265,568, respectively.

ADDITIONAL CASH FLOW INFORMATION (Notes)

9 Months Ended

Mar. 31, 2018

Supplemental Cash Flow Elements [Abstract]

Additional Cash Flow Information

ADDITIONAL CASH FLOW INFORMATION

The net changes in cash as a result of changes in operating assets and liabilities consist of the following:



	Nine Months Ended
	March 31
	2018			2017
Accounts receivable	$	919,927		$	585,803
Inventories	1,988,887			641,211
Prepaid expenses and other current assets	(123,671		)	(93,147		)
Income taxes receivable	5,951			529,378
Accounts payable	(1,414,569		)	(551,606		)
Accrued liabilities	358,027			(338,137		)
Other liabilities	(5,047		)	(11,656		)
Net change	$	1,729,505		$	761,846

Net cash paid (refunded) during the period for:
Income taxes	$	3,182		$	(523,342	)
Interest	$	5,218		$	964

LEGAL MATTERS (Notes)

9 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Legal Matters

LEGAL MATTERS

As of March 31, 2018, the Company is party to the following matter related to the unauthorized transactions described below:

•

On December 17, 2010, the Company filed an action against Park Bank in Circuit Court of Milwaukee County, Wisconsin alleging a claim of breach of the Uniform Fiduciaries Act relating to the unauthorized transactions, as previously reported. In 2015, Park Bank filed third party claims based on contribution and subrogation against Grant Thornton LLP and Michael Koss. The Court granted motions to dismiss the contribution claims against Grant Thornton LLP and Michael Koss, but determined that it was premature to decide the subrogation claims at this stage of the proceedings. On or around March 11, 2016, the Court entered an order granting Park Bank's motion for summary judgment that dismissed the case. On March 22, 2016, the Company filed a Notice of Appeal that appeals the order granting Park Bank's motion for summary judgment and the Court's denial of the motion to dismiss the subrogation claims. Park Bank also filed a cross–appeal that appeals the Court's order that granted the motions to dismiss the contribution claims against Grant Thornton LLP and Michael Koss. On December 12, 2017, the Court of Appeals issued its decision that affirmed the Circuit Court’s judgment dismissing the Company’s claim against Park Bank. The Company filed a Petition for Review of that decision before the Supreme Court of Wisconsin. On March 14, 2018, the Court granted the Petition. The case is currently pending before the Wisconsin Supreme Court.

The ultimate resolution of this matter is not determinable unless otherwise noted.

INVENTORIES (Tables)

9 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventories

The components of inventories were as follows:



	March 31, 2018			June 30, 2017
Raw materials	$	2,741,338		$	2,900,499
Work-in process	5,644			—
Finished goods	6,278,088			7,895,561
	9,025,070			10,796,060
Allowance for obsolete inventory	(2,668,614		)	(2,450,717		)
Total inventories	$	6,356,456		$	8,345,343

UNAUTHORIZED TRANSACTION RELATED COSTS AND RECOVERIES UNAUTHORIZED TRANSACTION RELATED COSTS AND RECOVERIES (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Unauthorized Transaction Related Costs and Recoveries [Abstract]
Legal fees incurred	$ 0	$ 40,000	$ 0	$ 77,500
Proceeds from asset forfeitures	(1,265)	(337)	(17,445)	(3,741)
Unauthorized transaction related costs (recoveries), net	$ (1,265)	$ 39,663	$ (17,445)	$ 73,759

INVENTORIES (Details) - USD ($)	Mar. 31, 2018	Jun. 30, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 2,741,338	$ 2,900,499
Work-in process	5,644	0
Finished goods	6,278,088	7,895,561
Gross inventory	9,025,070	10,796,060
Allowance for obsolete inventory	(2,668,614)	(2,450,717)
Total inventories	$ 6,356,456	$ 8,345,343

INCOME TAXES (Details) - USD ($)	3 Months Ended		9 Months Ended
INCOME TAXES (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2017
Income Tax Contingency [Line Items]
Income tax provision	$ 5,126	$ 62,523	$ 3,048,208	$ 188,948
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	0		713,826
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	187,846		2,429,235
Unrecognized tax benefits	0		0		$ 0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 0		$ 0

CREDIT FACILITY (Details) - USD ($)		3 Months Ended		9 Months Ended
CREDIT FACILITY (Details) - USD ($)	May 12, 2010	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2017	Jun. 29, 2017
Line of Credit Facility [Line Items]
Revolving secured credit facility, maximum borrowing available	$ 8,000,000						$ 4,000,000
Line of credit sublimit	$ 2,000,000
Line of credit facility		$ 0		$ 0		$ 0
Interest Expense, Debt		$ 0	$ 0	$ 5,218	$ 964
Minimum [Member]
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage	0.30%
Minimum [Member] \| Prime Rate [Member]
Line of Credit Facility [Line Items]
Interest rate, percentage spread, depending on Company's leverage ratio	0.00%
Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Interest rate, percentage spread, depending on Company's leverage ratio	2.00%
Maximum [Member]
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage	0.45%
Maximum [Member] \| Prime Rate [Member]
Line of Credit Facility [Line Items]
Interest rate, percentage spread, depending on Company's leverage ratio	0.75%
Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Interest rate, percentage spread, depending on Company's leverage ratio	3.00%

ACCRUED LIABILITIES (Details) - USD ($)	Mar. 31, 2018	Jun. 30, 2017
Accrued Liabilities [Abstract]
Cooperative advertising and promotion allowances	$ 462,082	$ 415,050
Product warranty obligations	193,578	220,541
Customer credit balances	344,663	21,175
Current deferred compensation	150,000	150,000
Accrued returns	48,508	53,915
Employee benefits	60,272	54,074
Legal and professional fees	66,000	86,500
Sales commissions and bonuses	130,347	83,654
Other	51,972	64,486
Total accrued liabilities	$ 1,507,422	$ 1,149,395

INCOME (LOSS) PER COMMON AND COMMON STOCK EQUIVALENT SHARE (Details) - shares	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share, Basic and Diluted [Abstract]
Weighted average number of shares outstanding	7,382,706	7,382,706
Common stock equivalents related to stock option grants that were included in the computation of the weighted-average number of shares outstanding	0	0
Shares issuable upon the exercise of outstanding options, excluded from the diluted weighted-average common shares outstanding as they would be anti-dilutive	2,395,000	2,345,000

STOCK OPTIONS (Details) - USD ($)	3 Months Ended		9 Months Ended
STOCK OPTIONS (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Granted (in shares)			490,000	485,000
Weighted average exercise price of shares granted in period			$ 1.89	$ 2.33
Stock-based compensation expense	$ 82,792	$ 88,523	$ 248,624	$ 265,568

ADDITIONAL CASH FLOW INFORMATION (Details) - USD ($)	9 Months Ended
ADDITIONAL CASH FLOW INFORMATION (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Accounts receivable	$ 919,927	$ 585,803
Inventories	1,988,887	641,211
Prepaid expenses and other current assets	(123,671)	(93,147)
Income taxes receivable	5,951	529,378
Accounts payable	(1,414,569)	(551,606)
Accrued liabilities	358,027	(338,137)
Other liabilities	(5,047)	(11,656)
Net change	(1,729,505)	(761,846)
Net cash (refunded) paid during the period for:
Income taxes	3,182	(523,342)
Interest	$ 5,218	$ 964

STOCKHOLDERS' EQUITY (Details) - USD ($)	3 Months Ended		9 Months Ended
STOCKHOLDERS' EQUITY (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity Attributable to Parent [Abstract]
Net (loss)	$ (812,868)	$ (1,117,582)	$ (3,733,089)	$ (893,259)
Stock-based compensation expense			248,624	265,568
(Decrease) in stockholders' equity			$ (3,484,465)	$ (627,691)

COMMITMENTS AND CONTINGENCIES (Details)	9 Months Ended
COMMITMENTS AND CONTINGENCIES (Details)	Mar. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Operating leases, annual lease commitment	$ 380,000

COMMITMENTS AND CONTINGENCIES COMMITMENTS AND CONTINGENCIES (Notes)	9 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	COMMITMENTS AND CONTINGENCIES The Company leases its facility in Milwaukee, Wisconsin from Koss Holdings, LLC, which is wholly-owned by the former Chairman. On January 5, 2017, the lease was renewed for a period of five years, ending June 30, 2023, and is being accounted for as an operating lease. The lease extension maintained the rent at a fixed rate of $380,000 per year. The Company is responsible for all property maintenance, insurance, taxes and other normal expenses related to ownership.