Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024
Cash flows from operating activities:
Net income	$ 959,000	$ 1,752,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	442,000	503,000
Stock-based compensation	553,000	95,000
Provision for inventory obsolescence	30,000	45,000
Changes in:
Accounts receivable	979,000	(3,032,000)
Unbilled revenue	(90,000)	75,000
Inventories	1,896,000	(5,742,000)
Prepaid expenses and other current and long-term assets	66,000	1,042,000
Income taxes receivable and payable	(81,000)	54,000
Accounts payable, accrued expenses and other current liabilities	(23,000)	2,465,000
Deferred revenue and customer deposits	(1,822,000)	(495,000)
Net cash provided by (used in) operating activities	2,909,000	(3,695,000)
Cash flows from investing activities:
Purchases of property and equipment	(419,000)	(146,000)
Sale of other equipment	0	457,000
Net cash (used in) provided by investing activities	(419,000)	311,000
Cash flows from financing activities:
Net cash provided by financing activities	0	0
Effect of changes in foreign exchange rates on cash and cash equivalents	6,000	(1,000)
Net change in cash and cash equivalents	2,496,000	(3,385,000)
Cash and cash equivalents, beginning of period	5,336,000	5,289,000
Cash and cash equivalents, end of period	7,832,000	1,904,000
Supplemental cash flow information:
Income taxes paid	1,049,000	938,000
Other Machinery and Equipment [Member]
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Gross profit from sale of equipment	$ 0	$ (457,000)