Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Sep. 30, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 8,281,714	$ 6,234,268
Marketable securities	115,433	405,169
Accounts receivable, net	7,024,023	9,553,385
Inventories:
Parts, components, and materials	2,761,353	3,773,356
Work-in-process	1,102,007	1,396,268
Finished products	4,370,261	4,133,649
Inventory net	8,233,621	9,303,273
Recoverable income taxes	0	92,811
Prepaid expenses and other current assets	687,881	529,070
TOTAL CURRENT ASSETS	24,342,672	26,117,976
Property, plant and equipment:
Land	1,498,590	1,188,960
Buildings and improvements	3,463,191	5,730,114
Machinery, equipment and vehicles	5,867,261	6,262,723
Property, plant and equipment	10,829,042	13,181,797
Less accumulated depreciation and amortization	5,839,369	9,139,622
Property, Plant and Equipment Net	4,989,673	4,042,175
Other assets	973,410	1,174,598
TOTAL ASSETS	30,305,755	31,334,749
CURRENT LIABILITIES
Accounts payable	2,732,228	3,403,378
Accrued compensation and employee benefits	2,563,932	2,505,744
Accrued expenses	1,194,105	1,201,339
Unearned revenue	408,391	443,708
TOTAL CURRENT LIABILITIES	6,898,656	7,554,169
Unearned revenue	138,027	161,028
Other long-term liabilities	1,744,416	2,431,742
TOTAL LIABILITIES	8,781,099	10,146,939
SHAREHOLDERS’ EQUITY
Common stock, par value $.01	53,601	53,509
Capital in excess of par value	25,552,138	25,343,712
Retained earnings	280,023	261,375
Less treasury stock, at cost	(4,226,852)	(4,300,952)
Accumulated other comprehensive loss	(134,254)	(169,834)
TOTAL SHAREHOLDERS’ EQUITY	21,524,656	21,187,810
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 30,305,755	$ 31,334,749