Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Operating Activities:
Net (loss) income	$ (14,178)	$ (8,093)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	6,325	6,555
Stock-based compensation	4,450	6,138
Noncash lease expense	634	599
Amortization of debt issuance costs	227	227
Provision for credit losses	29	26
Deferred taxes	(121)	(262)
Other	(37)	(458)
Change in operating assets and liabilities:
Accounts receivable and contract assets	928	(5,533)
Inventories	(588)	(566)
Prepaids and other	(31)	3,965
Accounts payable	3,096	185
Accrued liabilities	(3,736)	(3,249)
Income taxes	(1,764)	153
Deferred revenue	(774)	(3,097)
Net cash (used in) provided by operating activities	(5,540)	(3,410)
Investing Activities:
Purchases of property and equipment	(1,122)	(2,950)
Purchases of available-for-sale securities	(6,393)	(25,445)
Maturities of available-for-sale securities	4,000	16,000
Net cash (used in) provided by investing activities	(3,515)	(12,395)
Financing Activities:
Issuance of common stock	168	663
Payments for taxes related to net share settlement of equity awards	(1,352)	(1,120)
Payments for acquisition of in-process research and development		(931)
Net cash (used in) provided by financing activities	(1,184)	(1,388)
Effect of exchange rate changes on cash and cash equivalents	405	75
Net change in cash and cash equivalents	(9,834)	(17,118)
Cash and Cash Equivalents:
Beginning of period	36,115	41,419
End of period	26,281	24,301
Supplemental Information:
Cash paid for income taxes	2,335	1,679
Cash paid for interest	2,213	2,288
Noncash investing and financing activities:
Acquisition of property and equipment	$ 70	58
Right-of-use assets obtained in exchange for operating lease liabilities		$ 845