Unaudited Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Sales:
Product	$ 18,684	$ 20,972	$ 33,322	$ 37,975
Services	6,632	6,167	11,910	12,840
Total sales	25,316	27,139	45,232	50,815
Cost of sales:
Product	15,878	17,054	28,103	31,290
Services	3,743	3,752	6,982	8,002
Total cost of sales	19,621	20,806	35,085	39,292
Gross profit	5,695	6,333	10,147	11,523
Operating expenses:
Engineering and development	573	790	1,169	1,589
Selling, general and administrative	4,500	4,665	8,458	8,713
Total operating expenses	5,073	5,455	9,627	10,302
Operating income	622	878	520	1,221
Other income (expense):
Foreign exchange gain (loss)	28	(103)	82	(63)
Other expense, net	(11)	(14)	(21)	(26)
Total other income (expense)	17	(117)	61	(89)
Income before income taxes	639	761	581	1,132
Income tax expense	211	258	196	346
Net income	428	503	385	786
Net income attributable to common stockholders	$ 410	$ 480	$ 357	$ 756
Net income (loss) per share – basic (in Dollars per share)	$ 0.11	$ 0.13	$ 0.10	$ 0.21
Weighted average shares outstanding – basic (in Shares)	3,724	3,609	3,697	3,589
Net income (loss) per share – diluted (in Dollars per share)	$ 0.11	$ 0.13	$ 0.09	$ 0.20
Weighted average shares outstanding – diluted (in Shares)	3,847	3,730	3,807	3,728