CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,393,343	$ 1,021,369
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	271,061	234,303
Stock-based compensation	195,293	359,105
Provision for (Recovery of) uncollectible accounts	5,514	(10,000)
Provision for sales returns	662,000	299,000
Inventory write-off	105,000	149,000
Provision for accounts receivable discounts	9,581	39,706
Changes in operating assets and liabilities:
Accounts receivable	(3,066,219)	(1,454,318)
Inventory	1,862,843	(2,207,214)
Prepaid expenses and other assets, net	62,095	(196,764)
Accounts payable	(815,659)	1,403,677
Accrued income taxes	988	747
Accrued expenses and other liabilities	(273,784)	123,752
Net cash provided by (used in) operating activities	2,412,056	(237,637)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(244,688)	(319,728)
Payments for intangible assets	(26,538)	(36,797)
Net cash used in investing activities	(271,226)	(356,525)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of common stock, net of offering costs	0	932,480
Stock option exercises	114,999	0
Net cash provided by financing activities	114,999	932,480
NET INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	2,255,829	338,318
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF PERIOD	14,617,234	13,006,545
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	16,873,063	13,344,863
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	0	277
Cash paid during the period for income taxes	$ 8,961	$ 2,050