Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating Activities:
Net loss	$ (539)	$ (15,576)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,429	4,214
Stock-based compensation	4,094	3,747
Noncash lease expense	397	321
Amortization of debt issuance costs	144	182
Provision for credit losses	27	121
Deferred taxes	(189)	(217)
Other	(268)	106
Change in operating assets and liabilities:
Accounts receivable and contract assets	(4,337)	(2,346)
Inventories	(565)	(1,948)
Prepaids and other	2,740	(1,582)
Accounts payable	4	279
Accrued liabilities	(5,007)	(4,064)
Income taxes	(279)	2,629
Deferred revenue	(2,028)	(2,493)
Net cash used in operating activities	(1,377)	(16,627)
Investing Activities:
Purchases of property and equipment	(1,991)	(1,700)
Purchases of available-for-sale securities	(13,682)
Maturities of available-for-sale securities	10,000
Net cash used in investing activities	(5,673)	(1,700)
Financing Activities:
Payments of short-term borrowings		(10,000)
Proceeds from issuance of long-term debt		29,664
Payments of debt issuance costs		(611)
Issuance of common stock	570	803
Payments for taxes related to net share settlement of equity awards	(1,093)	(872)
Payments for acquisition of in-process research and development	(931)	(978)
Net cash (used in) provided by financing activities	(1,454)	18,006
Effect of exchange rate changes on cash	115	503
Net change in cash and cash equivalents	(8,389)	182
Cash and Cash Equivalents:
Beginning of period	41,419	18,998
End of period	33,030	19,180
Supplemental Information:
Cash paid for income taxes	338	10
Cash paid for interest	1,518	1,393
Noncash investing and financing activities:
Acquisition of property and equipment	227	$ 355
Right-of-use assets obtained in exchange for operating lease liabilities	$ 845