Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2022	Jun. 30, 2022
Current assets:
Cash and cash equivalents	$ 4,812,277	$ 9,208,170
Short term investments, net of unamortized discounts	5,010,628
Accounts receivable, less allowance for doubtful accounts of $10,500 and $2,027, respectively	1,280,089	1,846,620
Inventories, net	7,829,596	8,631,362
Prepaid expenses and other current assets	341,646	188,478
Interest receivable	128,030
Total current assets	19,402,266	19,874,630
Equipment and leasehold improvements, net	1,002,594	1,088,017
Other assets:
Long term investments, net of unamortized discounts	9,890,533
Operating lease right-of-use assets	3,133,274	3,247,725
Cash surrender value of life insurance	5,976,410	5,744,724
Total other assets	19,000,217	8,992,449
Total assets	39,405,077	29,955,096
Current liabilities:
Accounts payable	285,482	796,163
Accrued liabilities	1,287,181	560,356
Deferred revenue	419,043	543,891
Operating lease liability	230,121	223,530
Income taxes payable	497,872	3,033
Total current liabilities	2,719,699	2,126,973
Long-term liabilities:
Deferred compensation	1,891,154	1,937,229
Deferred revenue	135,594	169,210
Operating lease liability	2,907,629	3,024,195
Total long-term liabilities	4,934,377	5,130,634
Total liabilities	7,654,076	7,257,607
Stockholders' equity:
Common stock, $0.005 par value, authorized 20,000,000 shares; issued and outstanding 9,189,795 and 9,147,795, respectively	45,949	45,739
Paid in capital	12,908,840	12,653,402
Retained earnings	18,796,212	9,998,348
Total stockholders' equity	31,751,001	22,697,489
Total liabilities and stockholders' equity	$ 39,405,077	$ 29,955,096