Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ 3,043	$ (1,167)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	724	1,230
Stock-based compensation	141	264
Gain on sale of Klein	0	(2,393)
Provision for inventory obsolescence	67	23
Changes in:
Accounts receivable	(3,006)	(688)
Unbilled revenue	164	51
Inventories	(3,944)	(3,174)
Prepaid expenses and other current and long-term assets	2,076	566
Income taxes receivable and payable	(24)	(21)
Accounts payable, accrued expenses and other current liabilities	98	(1,045)
Deferred revenue and customer deposits	(289)	1,115
Net cash used in operating activities	(1,407)	(5,624)
Cash flows from investing activities:
Purchases of property and equipment	(213)	(199)
Proceeds from the sale of Klein, net	0	10,832
Sale of other equipment	457	385
Net cash provided by investing activities	244	11,018
Cash flows from financing activities:
Preferred stock conversion transaction costs	(619)	0
Net proceeds from short-term loan	0	2,947
Payment on short-term loan	0	(3,750)
Refund of prepaid interest on short-term loan	0	214
Net cash used in financing activities	(619)	(589)
Effect of changes in foreign exchange rates on cash and cash equivalents	(2)	(14)
Net change in cash and cash equivalents	(1,784)	4,791
Cash and cash equivalents, beginning of period	5,289	778
Cash and cash equivalents, end of period	3,505	5,569
Supplemental cash flow information:
Interest paid	0	576
Income taxes paid	1,411	617
Other Machinery and Equipment [Member]
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Gross profit from sale of equipment	$ (457)	$ (385)