CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue	$ 24,123	$ 19,979
Cost of revenue	18,035	15,600
Gross profit	6,088	4,379
Operating expense:
Selling, general, and administrative	6,609	9,289
Research and development	3,609	4,215
Severance	211	16
Gain on sale of assets	31	1,171
Total operating expense	10,398	12,349
Operating loss	(4,310)	(7,970)
Other expense:
Interest expense, net	(9)	(215)
Other (expense) income	(16)	107
Total other expense	(25)	(108)
Loss from continuing operations before income tax expense	(4,335)	(8,078)
Income tax expense from continuing operations	(28)	(94)
Net loss from continuing operations	(4,363)	(8,172)
Loss from discontinued operations	(1,316)	(3,521)
Net loss	$ (5,679)	$ (11,693)
Per share data:
Net loss on continuing operations per share, basic (in dollars per share)	$ (0.05)	$ (0.22)
Net loss on continuing operations per share, diluted (in dollars per share)	(0.05)	(0.22)
Net loss on discontinued operations per share, basis (in dollars per share)	(0.01)	(0.09)
Net loss on discontinued operations per share, diluted (in dollars per share)	(0.01)	(0.09)
Net loss per share, basic (in dollars per share)	(0.06)	(0.31)
Net loss per share, diluted (in dollars per share)	$ (0.06)	$ (0.31)
Weighted-average number of share outstanding, basic (in shares)	88,987	37,557
Weighted-average number of share outstanding, diluted (in shares)	88,987	37,557