CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2021	Sep. 30, 2021
Current assets
Cash and cash equivalents	$ 9,705,993	$ 8,265,606
Accounts receivable	3,721,216	4,046,337
Inventories	4,606,475	4,545,392
Prepaid expenses and other current assets	881,478	833,076
Total current assets	18,915,162	17,690,411
Property and equipment, net	8,131,449	8,143,483
Deferred income taxes	832,524	1,063,822
Other assets	181,655	188,284
Total assets	28,060,790	27,086,000
Current liabilities
Accounts payable	500,464	623,620
Accrued expenses	1,435,528	1,431,115
Contract liability	335,854	417,504
Total current liabilities	2,271,846	2,472,239
Other liabilities	25,214	28,680
Total liabilities	2,297,060	2,500,919
Commitments and contingencies (See Note 6)
Shareholders' equity
Preferred stock, 10,000,000 shares authorized, $.001 par value, of which 200,000 shares are authorized as Class A Convertible stock. No shares issued and outstanding at December 31, 2021 and September 30, 2021
Common stock, $.001 par value: 75,000,000 shares authorized, 19,342,823 issued at December 31, 2021 and September 30, 2021	19,343	19,343
Additional paid-in capital	51,862,686	51,817,095
(Accumulated deficit)	(4,749,762)	(5,882,820)
Treasury stock, at cost, 2,096,451 shares at December 31, 2021 and September 30, 2021	(21,368,537)	(21,368,537)
Total shareholders' equity	25,763,730	24,585,081
Total liabilities and shareholders' equity	$ 28,060,790	$ 27,086,000