XML 48 R72.htm IDEA: XBRL DOCUMENT
v2.4.0.6

EMPLOYEE BENEFIT PLANS, RETIREMENT SAVINGS PLAN UNDER SECTION 401(K) (Details) (USD $) | 12 Months Ended
--- | ---
Jun. 30, 2012 Rate | Jun. 30, 2011 Rate
Compensation and Retirement Disclosure [Abstract] |  |
Company match, percentage | 100.00% | 100.00%
Company contributions | $ 424,136 | $ 388,448

X
- Definition Defined Contribution Plan, Company Match + References No definition available. + Details
Name: | koss_DefinedContributionPlanCompanyMatch
Namespace Prefix: | koss_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration