CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,994,637	$ 3,393,343
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	238,210	271,061
Stock-based compensation	478,411	195,293
Provision for uncollectible accounts	52,000	5,514
Provision for sales returns	652,000	662,000
Inventory write-off	232,000	105,000
Provision for accounts receivable discounts	29,250	9,581
Deferred income taxes	405,159	0
Changes in operating assets and liabilities:
Accounts receivable	(2,718,303)	(3,066,219)
Inventory	(2,899,591)	1,862,843
Prepaid expenses and other assets, net	(483,054)	62,095
Accounts payable	2,096,372	(815,659)
Accrued income taxes	943	988
Accrued expenses and other liabilities	43,297	(273,784)
Net cash provided by operating activities	121,331	2,412,056
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(775,705)	(244,688)
Payments for intangible assets	(27,730)	(26,538)
Net cash used in investing activities	(803,435)	(271,226)
CASH FLOWS FROM FINANCING ACTIVITIES:
Stock option exercises	545,918	114,999
Net cash provided by financing activities	545,918	114,999
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(136,186)	2,255,829
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF PERIOD	21,446,951	14,617,234
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	21,310,765	16,873,063
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	0	0
Cash paid during the period for income taxes	$ 0	$ 8,961