CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Sales:
Total sales	$ 11,981	$ 14,088	$ 24,350	$ 25,476
Cost of sales:
Total cost of sales	7,781	9,720	16,536	17,730
Gross profit	4,200	4,368	7,814	7,746
Operating expenses:
Engineering and development	717	762	1,344	1,491
Selling, general and administrative	3,507	3,727	6,890	6,913
Total operating expenses	4,224	4,489	8,234	8,404
Operating loss	(24)	(121)	(420)	(658)
Other income (expense):
Foreign exchange gain (loss)	176	(154)	159	(621)
Interest expense	(101)	(75)	(206)	(113)
Interest income	126	133	271	231
Gain on forgiveness of debt				2,196
Other income (expense), net	(16)	93	3	102
Total other income (expense), net	185	(3)	227	1,795
Income (loss) before income taxes	161	(124)	(193)	1,137
Income tax expense	5	723	17	833
Net income (loss)	156	(847)	(210)	304
Net income (loss) attributable to common shareholders	$ 148	$ (847)	$ (210)	$ 289
Net income (loss) per share - basic	$ 0.03	$ (0.20)	$ (0.05)	$ 0.07
Weighted average shares outstanding - basic	4,274	4,158	4,237	4,117
Net income (loss) per share - diluted	$ 0.03	$ (0.20)	$ (0.05)	$ 0.07
Weighted average shares outstanding - diluted	4,285	4,158	4,237	4,202
Product
Sales:
Total sales	$ 8,217	$ 10,976	$ 16,937	$ 19,384
Cost of sales:
Total cost of sales	6,265	8,553	13,542	15,502
Services
Sales:
Total sales	3,764	3,112	7,413	6,092
Cost of sales:
Total cost of sales	$ 1,516	$ 1,167	$ 2,994	$ 2,228