Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2012	Sep. 30, 2011
CURRENT ASSETS
Cash and cash equivalents	$ 5,711,347	$ 5,628,156
Marketable securities	399,087	2,035,593
Accounts receivable, net	6,633,042	7,771,356
Inventories:
Parts, components, and materials	4,657,355	3,969,656
Work-in-process	1,685,674	2,032,176
Finished products	5,590,638	5,392,699
Inventory net	11,933,667	11,394,531
Recoverable income taxes	92,811	92,811
Prepaid expenses and other current assets	639,267	624,939
TOTAL CURRENT ASSETS	25,409,221	27,547,386
Property, plant and equipment	13,030,038	12,873,127
Less accumulated depreciation and amortization	(8,945,696)	(8,532,990)
Property, Plant and Equipment Net	4,084,342	4,340,137
Other assets	1,208,985	1,303,753
TOTAL ASSETS	30,702,548	33,191,276
CURRENT LIABILITIES
Accounts payable	3,062,595	4,240,096
Accrued compensation and employee benefits	1,999,841	2,297,575
Accrued expenses	1,220,639	1,022,034
Unearned revenue	524,622	495,612
Income taxes payable	32,589	32,589
TOTAL CURRENT LIABILITIES	6,840,286	8,087,906
Unearned revenue	162,736	234,927
Other long-term liabilities	2,395,418	2,424,516
TOTAL LIABILITIES	9,398,440	10,747,349
SHAREHOLDERS’ EQUITY
Common stock, par value $.01	53,509	53,450
Capital in excess of par value	25,263,373	25,041,273
Retained earnings	582,229	1,641,720
Less treasury stock, at cost	(4,300,952)	(4,219,502)
Accumulated other comprehensive loss	(294,051)	(73,014)
TOTAL SHAREHOLDERS’ EQUITY	21,304,108	22,443,927
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 30,702,548	$ 33,191,276