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ACCOUNTS RECEIVABLE, NARRATIVE (Details) (USD $)	12 Months Ended
	Jun. 30, 2014 Rate	Jun. 30, 2013 Rate
Receivables [Abstract]
Proceeds from the settlement of the lawsuit against a third party, included in accounts receivable	$ 0	$ 8,500,000
Trade accounts receivable, two largest customers, percentage	11.00%	20.50%
Recoveries of previously written-off accounts receivable	$ 112,417	$ 0
Foreign trade accounts receivable, denominated in US dollars, percentage	14.00%	16.00%

X

- Definition

Foreign accounts receivable denominated in US dollars

+ References

No definition available.

+ Details

Name:	koss_ForeignaccountsreceivabledenominatedinUSdollars
Namespace Prefix:	koss_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Gross proceeds from legal settlements included in income for the period, related to unauthorized transactions

+ References

No definition available.

+ Details

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

X

- Definition

Percent of gross accounts receivable with two largest customers

+ References

No definition available.

+ Details

Name:	koss_PercentOfGrossAccountsReceivableWithTwoLargestCustomers
Namespace Prefix:	koss_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of recoveries of receivables doubtful of collection that were previously charged off.

+ References

No definition available.

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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