Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Sales:
Total sales	$ 15,448	$ 13,105	$ 44,265	$ 42,186
Cost of sales:
Total cost of sales	10,995	8,523	31,041	27,031
Gross profit	4,453	4,582	13,224	15,155
Operating expenses:
Engineering and development	791	737	2,340	2,163
Selling, general and administrative	4,885	4,565	13,455	12,821
Total operating expenses	5,676	5,302	15,795	14,984
Operating (loss) income	(1,223)	(720)	(2,571)	171
Other income (expense):
Foreign exchange loss	(200)	(10)	(37)	(152)
Interest expense	(105)	(55)	(259)	(150)
Interest income	440	523	1,343	1,497
Other income, net	73	2	75	37
Total other income, net	208	460	1,122	1,232
(Loss) income before income taxes	(1,015)	(260)	(1,449)	1,403
Income tax (benefit) expense	(751)	(75)	(1,549)	73
Net (loss) income	(264)	(185)	100	1,330
Net (loss) income attributable to common shareholders	$ (264)	$ (185)	$ 94	$ 1,244
Net (loss) income per common share - basic (in dollars per share)	$ (0.03)	$ (0.02)	$ 0.01	$ 0.14
Weighted average common shares outstanding - basic (in shares)	9,362	9,110	9,275	9,014
Net (loss) income per common share - diluted (in dollars per share)	$ (0.03)	$ (0.02)	$ 0.01	$ 0.13
Weighted average common shares outstanding - diluted (in shares)	9,362	9,110	9,611	9,410
Product
Sales:
Total sales	$ 10,150	$ 7,845	$ 29,717	$ 27,710
Cost of sales:
Total cost of sales	8,553	6,523	24,551	21,167
Service
Sales:
Total sales	5,298	5,260	14,548	14,476
Cost of sales:
Total cost of sales	$ 2,442	$ 2,000	$ 6,490	$ 5,864