Significant Accounting Policies (Narrative) (Details)	1 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($)	Jun. 30, 2023 USD ($) item	Jun. 30, 2022 USD ($)
Accounting Policies Disclosure [Line Items]
Income tax provision		$ 317,377	$ 7,517
Licensing proceeds		$ 33,000,000	100,000
Proceeds from life insurance policy	$ 262,000		2,014,184
Number of subsidiaries | item		2
Referral fees		$ 43,190
Cost of goods sold		8,642,237	10,989,889
Research and development expense		288,231	285,244
Advertising expense		$ 65,374	50,513
Other income - Net gain from life insurance benefits			262,391
Revision of Prior Period, Reclassification, Adjustment [Member]
Accounting Policies Disclosure [Line Items]
Referral fees			98,252
Referral Fees [Member] | Revision of Prior Period, Reclassification, Adjustment [Member]
Accounting Policies Disclosure [Line Items]
Cost of goods sold			$ (98,252)
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%