CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (5,679)	$ (11,693)
Less: Loss from discontinued operations, net of tax	(1,316)	(3,521)
Loss from continuing operations, net of tax	(4,363)	(8,172)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	1,457	2,034
Stock-based compensation expense	848	1,734
Provision adjustment related to credit loss	0	42
Provision adjustment related to product warranty	(71)	50
Gain on sale of assets	(31)	(1,171)
Other	0	(133)
Total non-cash adjustments	2,203	2,556
Changes in operating assets and liabilities:
Accounts receivable and contract assets, net	(238)	(83)
Inventory	(3,049)	(4,141)
Other assets	985	(3,506)
Accounts payable	2,887	(355)
Contract liabilities	(735)	2,566
Operating lease liabilities - current	(14)	(1,175)
Accrued expenses and other liabilities	479	120
Total change in operating assets and liabilities	315	(6,574)
Net cash used in operating activities - continuing operations	(1,845)	(12,190)
Net cash (used in) provided by operating activities - discontinued operations	(2,229)	3,557
Net cash used in operating activities	(4,074)	(8,633)
Cash flows from investing activities:
Purchase of property, plant, and equipment	(214)	(818)
Proceeds from disposal of property, plant, and equipment	32	10,900
Proceeds from deposit on disposition of assets held for sale	1,000	0
Net cash provided by investing activities	818	10,082
Cash flows from financing activities:
Payments towards financing arrangement	(276)	0
Proceeds from borrowings from line of credit	0	393
Payments towards line of credit	(1,768)	(3,354)
Payments towards note payable	(213)	(213)
Payments of issuance costs related to sales of common stock	(18)	0
Taxes paid related to net share settlement of equity awards	(1)	(1)
Net cash used in financing activities	(2,276)	(3,175)
Effect of exchange rate changes provided by foreign currency	0	58
Net decrease in cash, cash equivalents, and restricted cash	(5,532)	(1,668)
Cash, cash equivalents, and restricted cash at beginning of period	26,706	25,619
Cash, cash equivalents, and restricted cash at end of period	21,174	23,951
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid during the period for interest	274	359
Cash paid during the period for income taxes	0	0
NON-CASH INVESTING AND FINANCING ACTIVITIES
Changes in accounts payable related to purchases of equipment	$ (214)	$ 122