CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Sales:
Sales	$ 13,532	$ 21,570	$ 46,199	$ 56,900
Cost of sales:
Total cost of sales	9,308	16,731	33,461	43,966
Gross profit	4,224	4,839	12,738	12,934
Operating expenses:
Engineering and development	693	583	2,081	2,109
Selling, general and administrative	3,924	4,111	11,595	11,436
Total operating expenses	4,617	4,694	13,676	13,545
Operating income (loss)	(393)	145	(938)	(611)
Other income (expense):
Foreign exchange gain (loss)	113	8	257	(22)
Interest expense	(56)	(26)	(168)	(74)
Interest income	133	79	469	200
Other income, (expense) net	3		7	4
Total other income (expense)	193	61	565	108
Income (loss) before income taxes	(200)	206	(373)	(503)
Income tax expense (benefit)	10	(326)	1,109	(466)
Net income (loss)	(210)	532	(1,482)	(37)
Net income (loss) attributable to common stockholders	$ (210)	$ 509	$ (1,482)	$ (37)
Net income (loss) per share – basic	$ (0.05)	$ 0.13	$ (0.37)	$ (0.01)
Weighted average shares outstanding – basic (in Shares)	4,048	4,051	4,015	3,913
Net income (loss) per share – diluted	$ (0.05)	$ 0.12	$ (0.37)	$ (0.01)
Weighted average shares outstanding – diluted (in Shares)	4,048	4,142	4,015	3,913
Product
Sales:
Sales	$ 10,294	$ 18,076	$ 35,812	$ 47,390
Cost of sales:
Total cost of sales	8,361	15,407	29,924	39,990
Service
Sales:
Sales	3,238	3,494	10,387	9,510
Cost of sales:
Total cost of sales	$ 947	$ 1,324	$ 3,537	$ 3,976