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INCOME TAXES, VALUATION ALLOWANCE (Details) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, end of year	$ (370,409)	$ (222,409)
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of year	(222,409)	(200,486)
Increase in valuation allowance	(148,000)	(21,923)
Release of valuation allowance	0	0
Balance, end of year	$ (370,409)	$ (222,409)

X

- Definition

The amount of the increase in the period in the valuation allowance for a specified deferred tax asset.

+ References

No definition available.

+ Details

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Namespace Prefix:	koss_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The amount of the decrease in the period in the valuation allowance for a specified deferred tax asset.

+ References

No definition available.

+ Details

Name:	koss_ReleaseOfValuationAllowance
Namespace Prefix:	koss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

+ Details

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

X

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration