Condensed Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2020	Jun. 30, 2020
Current Assets
Cash	$ 11,143,181	$ 10,479,150
Accounts receivable (net of allowances for doubtful accounts of $45,000)	13,624,505	12,940,677
Contract assets	799,121	902,619
Inventories, net	3,065,043	3,084,620
Prepaid expenses and other current assets	487,361	353,318
Income tax receivable	218,225	262,155
Total current assets	29,337,436	28,022,539
Property and equipment, net	3,666,101	3,788,469
Finite-life intangible assets, net	626,747	598,389
Other assets	60,508	80,166
Deferred income taxes	700,000	755,000
Total assets	34,390,792	33,244,563
Current Liabilities
Current maturities of other long-term liabilities	55,324	72,328
Accounts payable	766,197	555,510
Accrued compensation	1,761,523	1,404,497
Warranty reserve	750,000	740,000
Other accrued liabilities	195,731	214,045
Total current liabilities	3,528,775	2,986,380
Other long-term liabilities	6,001	8,868
Total liabilities	3,534,776	2,995,248
Commitments and Contingencies
Shareholders' Equity
Common stock, $0.01 par value per share, 13,000,000 shares authorized; 8,606,180 and 8,567,834 shares issued and outstanding, respectively	86,062	85,678
Additional paid-in capital	16,551,189	16,480,134
Retained earnings	14,218,765	13,683,503
Total shareholders' equity	30,856,016	30,249,315
Total liabilities and shareholders' equity	$ 34,390,792	$ 33,244,563