XML 111 R75.htm IDEA: XBRL DOCUMENT
v2.4.0.8

FOREIGN SALES AND SIGNIFICANT CUSTOMERS, NARRATIVE (Details) (USD $) | 12 Months Ended
--- | ---
Jun. 30, 2013 Rate | Jun. 30, 2012 Rate
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenue, net, foreign - non-U.S. | $ 19,393,145 | $ 20,710,632
Revenue, net, top five customers, percentage | 44.00% | 48.00%
United States |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenue, net, single customer, percentage | 9.00% | 11.00%
Scandinavia |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Revenue, net, single customer, percentage | 20.00% | 25.00%

X
- Definition Total revenue to non-U.S. based customers during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References No definition available. + Details
Name: | koss_RevenueNetForeignNonUS
Namespace Prefix: | koss_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue, net, single customer, percentage + References No definition available. + Details
Name: | koss_RevenueNetSingleCustomerPercentage
Namespace Prefix: | koss_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revenue, net, top five customers, percentage + References No definition available. + Details
Name: | koss_RevenueNetTopFiveCustomersPercentage
Namespace Prefix: | koss_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration