Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
	Jun. 30, 2024 USD ($) item	Jun. 30, 2023 USD ($)
Accounting Policies Disclosure [Line Items]
Accrued liabilities	$ 402,347	$ 1,342,039
Prepaid expenses and other current assets	1,081,437	1,002,514
Income tax provision (benefit)	(73,604)	317,377
Other income	$ 0
Licensing proceeds		33,000,000
Number of subsidiaries | item	2
Research and development expense	$ 238,086	288,231
Advertising expense	142,859	65,374
Adjustment to accounts receivable	4,105
Accounts receivable, allowance for credit loss, writeoff	0
Accounts receivable, allowance for credit loss, Recovery	0
Impairments of long-lived assets	0	0
Allowance for credit losses, held-to-maturity debt securities	0
Legal fees and related expenses		22,141,000
Over Withheld Taxes [Member]
Accounting Policies Disclosure [Line Items]
Accrued liabilities	0
Prepaid expenses and other current assets	722,498	717,892
Federal [Member]
Accounting Policies Disclosure [Line Items]
Income tax provision (benefit)	230,139
State and Local Jurisdiction [Member]
Accounting Policies Disclosure [Line Items]
Income tax provision (benefit)	$ 87,238
Koss UK [Member]
Accounting Policies Disclosure [Line Items]
Ownership percentage	100.00%
Koss Corp B.V. [Member]
Accounting Policies Disclosure [Line Items]
Ownership percentage	100.00%
Current Officer [Member]
Accounting Policies Disclosure [Line Items]
Deferred compensation expense (income)	$ 96,004	$ 59,891