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DEFERRED COMPENSATION (Details) (USD $)	12 Months Ended
	Jun. 30, 2014 Rate	Jun. 30, 2013 Rate
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Liability	$ 2,320,091	$ 2,375,550
Chairman of the Board
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Discount factor	2.60%	2.06%
Liability	704,306	501,923
Expense	202,383	(120,580)
Officer of Company
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Discount factor	4.62%	4.85%
Liability	1,615,785	1,873,627
Expense	$ (257,842)	$ 299,810
Cash compensation - percent of base salary times number of years of service	2.00%

X

- Definition

Deferred compensation, cash compensation, percent of base salary times number of years of service

+ References

No definition available.

+ Details

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Namespace Prefix:	koss_
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Balance Type:	na
Period Type:	instant

X

- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

+ Details

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Period Type:	duration

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- Details

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Balance Type:	na
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X

- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The interest rate used to adjust for the time value of money for the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(1)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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