Consolidated Balance Sheets - USD ($)	Jun. 30, 2020	Jun. 30, 2019	[1]
Current assets:
Cash and cash equivalents	$ 3,999,409	$ 2,228,282
Accounts receivable, less allowance for doubtful accounts of $74,082 and $2,617, respectively	2,317,064	3,655,143
Inventories	5,538,794	6,851,448
Prepaid expenses and other current assets	267,647	133,889
Income taxes receivable	14,622	45,660
Total current assets	12,137,536	12,914,422
Equipment and leasehold improvements, net	983,641	890,110
Other assets:
Deferred income taxes		13,276
Operating lease right-of-use asset	2,582,402	2,847,846
Cash surrender value of life insurance	6,876,827	6,569,628
Total other assets	9,459,229	9,430,750
Total assets	22,580,406	23,235,282
Current liabilities:
Accounts payable	827,705	1,436,373
Accrued liabilities	580,099	650,513
Deferred revenue	423,639	645,470
Operating lease liability	276,947	265,443
Short-term debt	506,700
Total current liabilities	2,615,090	2,997,799
Long-term liabilities:
Deferred compensation	2,333,482	2,419,962
Deferred revenue	170,281	163,018
Operating lease liability	2,305,455	2,582,402
Total long-term liabilities	4,809,218	5,165,382
Total liabilities	7,424,308	8,163,181
Stockholders' equity:
Common stock, $0.005 par value, authorized 20,000,000 shares; issued and outstanding 7,404,831 and 7,382,706 shares, respectively	37,024	37,024
Paid in capital	6,882,729	6,333,135
Retained earnings	8,236,345	8,701,942
Total stockholder' equity	15,156,098	15,072,101
Total liabilities and stockholders' equity	$ 22,580,406	$ 23,235,282

[1] Excludes approximately 2,786,225 and 2,523,513 stock options for the years ended June 30, 2020 and 2019, respectively, as the impact of such awards was anti-dilutive.