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Condensed Consolidated Balance Sheets - USD ($)
Sep. 30, 2021
Jun. 30, 2021
Current assets:    
Cash and cash equivalents $ 7,233,248 $ 6,950,215
Accounts receivable, less allowance for doubtful accounts of $41,980 and $41,499, respectively 2,119,718 2,240,785
Inventories, net 7,292,203 5,901,512
Prepaid expenses and other current assets 650,091 456,004
Total current assets 17,295,260 15,548,516
Equipment and leasehold improvements, net 1,257,936 1,281,180
Other assets:    
Operating lease right-of-use assets 2,234,363 2,305,455
Cash surrender value of life insurance 7,451,804 7,188,994
Total other assets 9,686,167 9,494,449
Total assets 28,239,363 26,324,145
Current liabilities:    
Accounts payable 1,022,945 398,433
Accrued liabilities 653,906 665,567
Deferred revenue 616,602 694,632
Operating lease liability 292,030 288,949
Income taxes payable 5,574 4,543
Total current liabilities 2,591,057 2,052,124
Long-term liabilities:    
Deferred compensation 2,542,792 2,491,482
Deferred revenue 184,517 188,932
Operating lease liability 1,942,333 2,016,506
Total long-term liabilities 4,669,642 4,696,920
Total liabilities 7,260,699 6,749,044
Stockholders' equity:    
Common stock, $0.005 par value, authorized 20,000,000 shares; issued and outstanding 9,137,795 and 8,608,706, respectively 45,689 43,044
Paid in capital 12,302,395 10,802,118
Retained earnings 8,630,580 8,729,939
Total stockholders' equity 20,978,664 19,575,101
Total liabilities and stockholders' equity $ 28,239,363 $ 26,324,145