Consolidated Balance Sheets - USD ($)	Jun. 30, 2022	Jun. 30, 2021
Current assets:
Cash and cash equivalents	$ 9,208,170	$ 6,950,215
Accounts receivable, less allowance for doubtful accounts of $2,027 and $41,500, respectively	1,846,620	2,240,785
Inventories	8,631,362	5,901,512
Prepaid expenses and other current assets	188,478	456,004
Total current assets	19,874,630	15,548,516
Equipment and leasehold improvements, net	1,088,017	1,281,180
Other assets:
Operating lease right-of-use assets	3,247,725	2,305,455
Cash surrender value of life insurance	5,744,724	7,188,994
Total other assets	8,992,449	9,494,449
Total assets	29,955,096	26,324,145
Current liabilities:
Accounts payable	796,163	398,433
Accrued liabilities	560,356	665,567
Deferred revenue	543,891	694,632
Operating lease liability	223,530	288,949
Income taxes payable	3,033	4,543
Total current liabilities	2,126,973	2,052,124
Long-term liabilities:
Deferred compensation	1,937,229	2,491,482
Deferred revenue	169,210	188,932
Operating lease liability	3,024,195	2,016,506
Total long-term liabilities	5,130,634	4,696,920
Total liabilities	7,257,607	6,749,044
Stockholders' equity:
Common stock, $0.005 par value, authorized 20,000,000 shares; issued and outstanding 9,147,795 and 8,608,706 shares, respectively	45,739	43,044
Paid in capital	12,653,402	10,802,118
Retained earnings	9,998,348	8,729,939
Total stockholders' equity	22,697,489	19,575,101
Total liabilities and stockholders' equity	$ 29,955,096	$ 26,324,145