Unaudited Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Sales:
Product	$ 16,328	$ 14,726	$ 43,607	$ 42,784
Services	6,026	4,063	18,869	14,261
Total sales	22,354	18,789	62,476	57,045
Cost of sales:
Product	13,899	12,255	37,274	35,631
Services	3,226	2,913	10,435	9,016
Total cost of sales	17,125	15,168	47,709	44,647
Gross profit	5,229	3,621	14,767	12,398
Operating expenses:
Engineering and development	444	442	1,301	1,460
Selling, general and administrative	3,580	3,450	10,828	10,135
Total operating expenses	4,024	3,892	12,129	11,595
Operating income (loss)	1,205	(271)	2,638	803
Other (expense):
Foreign exchange (loss)	(5)	(9)	(31)
Other (expense), net	(27)	(24)	(71)	(55)
Total other (expense), net	(32)	(33)	(102)	(55)
Income (loss) before income taxes	1,173	(304)	2,536	748
Income tax expense (benefit)	399	(90)	859	287
Net income (loss)	774	(214)	1,677	461
Net income (loss) attributable to common stockholders	$ 759	$ (211)	$ 1,647	$ 455
Net income (loss) per share – basic (in Dollars per share)	$ 0.23	$ (0.06)	$ 0.49	$ 0.13
Weighted average shares outstanding – basic (in Shares)	3,366	3,428	3,362	3,446
Net income (loss) per share – diluted (in Dollars per share)	$ 0.22	$ (0.06)	$ 0.48	$ 0.13
Weighted average shares outstanding – diluted (in Shares)	3,418	3,428	3,405	3,485