Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue:
Total revenue	$ 24,843,000	$ 25,858,000	$ 80,089,000	$ 100,160,000
Cost of revenue:
Total cost of revenue	17,304,000	17,332,000	50,653,000	63,517,000
Gross profit	7,539,000	8,526,000	29,436,000	36,643,000
Operating expenses:
Selling, general and administrative	7,546,000	6,941,000	21,741,000	19,313,000
Research and development	4,238,000	4,011,000	14,367,000	11,476,000
Provision for (recovery of) credit losses	2,000	(33,000)	21,000	(84,000)
Total operating expenses	11,786,000	10,919,000	36,129,000	30,705,000
Gain on disposal of property	4,616,000	0	4,616,000	0
Income (loss) from operations	369,000	(2,393,000)	(2,077,000)	5,938,000
Other income (expense):
Interest expense	(44,000)	(44,000)	(131,000)	(144,000)
Interest income	537,000	472,000	1,975,000	954,000
Foreign currency transaction gains (losses), net	4,000	(70,000)	(265,000)	(253,000)
Other, net	(38,000)	(37,000)	(109,000)	(104,000)
Total other income, net	459,000	321,000	1,470,000	453,000
Income (loss) before income taxes	828,000	(2,072,000)	(607,000)	6,391,000
Income tax expense (benefit)	68,000	(2,000)	55,000	109,000
Net income (loss)	$ 760,000	$ (2,070,000)	$ (662,000)	$ 6,282,000
Income (loss) per common share:
Basic (in dollars per share)	$ 0.06	$ (0.16)	$ (0.05)	$ 0.47
Diluted (in dollars per share)	$ 0.06	$ (0.16)	$ (0.05)	$ 0.47
Weighted average common shares outstanding:
Basic (in shares)	12,805,414	13,216,386	12,783,832	13,270,444
Diluted (in shares)	12,805,414	13,216,386	12,783,832	13,431,714
Product [Member]
Revenue:
Total revenue	$ 23,227,000	$ 20,223,000	$ 74,580,000	$ 83,434,000
Cost of revenue:
Total cost of revenue	15,150,000	14,179,000	43,166,000	53,016,000
Rental [Member]
Revenue:
Total revenue	1,616,000	5,635,000	5,509,000	16,726,000
Cost of revenue:
Total cost of revenue	$ 2,154,000	$ 3,153,000	$ 7,487,000	$ 10,501,000