Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenue:
Total revenue	$ 37,223	$ 50,032
Cost of revenue:
Total cost of revenue	17,074	27,796
Gross profit	20,149	22,236
Operating expenses:
Selling, general and administrative	7,420	5,826
Research and development	4,894	3,602
Provision for recovery of credit losses	0	(29)
Total operating expenses	12,314	9,399
Income from operations	7,835	12,837
Other income (expense):
Interest expense	(44)	(56)
Interest income	745	235
Foreign currency transaction gains (losses), net	(14)	(163)
Other, net	(33)	(74)
Total other income (loss), net	654	(58)
Income before income taxes	8,489	12,779
Income tax expense	113	100
Net income	$ 8,376	$ 12,679
Income per common share:
Basic (in dollars per share)	$ 0.66	$ 0.96
Diluted (in dollars per share)	$ 0.65	$ 0.94
Weighted average common shares outstanding:
Basic (in shares)	12,753,378	13,251,360
Diluted (in shares)	12,877,387	13,460,516
Product [Member]
Revenue:
Total revenue	$ 32,645	$ 43,714
Cost of revenue:
Total cost of revenue	14,269	23,842
Rental [Member]
Revenue:
Total revenue	4,578	6,318
Cost of revenue:
Total cost of revenue	$ 2,805	$ 3,954