Consolidated Balance Sheets - USD ($)	Sep. 30, 2018	Sep. 30, 2017
Current Assets:
Cash and cash equivalents	$ 1,957,744	$ 2,253,952
Marketable securities	13,440	13,555
Accounts receivable (less allowance of $723,000 in 2018 and $946,000 in 2017)	3,915,108	4,349,733
Inventories:
Parts, components and materials	482,063	783,553
Work-in-process	471,248	985,934
Finished products	4,364,281	4,780,514
Inventory net	5,317,592	6,550,001
Prepaid expenses and other current assets	467,384	782,128
Total current assets	11,671,268	13,949,369
Property, plant and equipment:
Leasehold improvements	165,198	195,950
Machinery, equipment and vehicles	5,954,328	5,842,970
Property, plant and equipment	6,119,526	6,038,920
Less accumulated depreciation and amortization	5,863,795	5,637,222
Property, plant and equipment, net	255,731	401,698
Other assets	500,972	1,116,583
TOTAL ASSETS	12,427,971	15,467,650
Current Liabilities:
Current maturity of long-term debt	150,000
Accounts payable	2,748,614	3,138,057
Accrued compensation and employee benefits	1,190,061	1,629,175
Accrued expenses	899,136	1,169,392
Unearned revenue	415,375	500,878
Total current liabilities	5,403,186	6,437,502
Borrowings under term loan	5,450,000
Revolving credit borrowings		4,950,000
Unearned revenue-non current	346,820	139,601
Other long-term liabilities	1,253,613	1,570,861
Total liabilities	12,453,619	13,097,964
Shareholders' (deficit) equity:
Common stock, par value $.01 per share authorized - 25,000,000 shares issued - 18,249,062 and 10,044,827 shares	182,491	100,448
Capital in excess of par value	43,998,942	40,999,470
Accumulated deficit	(40,545,686)	(35,136,539)
Treasury stock at cost, 696,439 shares in 2018 and 2017	(3,437,643)	(3,437,643)
Accumulated other comprehensive loss	(223,752)	(156,050)
Total shareholders' (deficit) equity	(25,648)	2,369,686
TOTAL LIABILITIES AND SHAREHOLDERS' (DEFICIT) EQUITY	$ 12,427,971	$ 15,467,650