Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Operating activities
Net income	$ 13,211	$ 5,945
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation and amortization	3,830	3,646
Deferred tax expense (benefit)	(6,920)	479
Stock-based compensation expense	913	1,002
Non-cash pension termination	0	826
Provision on uncollectible accounts	89	142
(Gain) loss on disposal of fixed assets	(6)	43
Gain from insurance recovery	0	(565)
Changes in operating assets and liabilities
Accounts payable	8,814	1,094
Accrued compensation and payroll taxes	(1,144)	65
Inventories	(830)	(1,505)
Proceeds from insurance recovery for inventory	0	539
Customers' deposits	2,315	(336)
Income taxes receivable and payable	144	450
Prepaid expenses and other current assets	(2,849)	(123)
Accounts receivable	(4,859)	(3,232)
Costs and estimated earnings in excess of billings on uncompleted contracts	(1,218)	(351)
Other assets and liabilities	8,294	454
Net cash provided by (used in) operating activities	14,731	(1,241)
Investing activities
Capital expenditures	(11,106)	(6,975)
Proceeds from insurance recovery for property and equipment	5	499
Proceeds from sales of property and equipment	3	94
Net cash used in investing activities	(11,098)	(6,382)
Financing activities
Proceeds from revolving lines	155,706	96,903
Payments of debt on revolving lines	(156,996)	(91,438)
Payments of other debt	(243)	(263)
Decrease in drafts payable	(197)	42
Payments on finance lease obligations, net	(193)	(338)
Repurchase of common stock	(942)	(69)
Stock options exercised and taxes paid related to restricted shares vested	(273)	(206)
Net cash (used in) provided by financing activities	(3,256)	4,543
Effect of exchange rate changes on cash, cash equivalents and restricted cash	70	102
Net increase (decrease) in cash, cash equivalents and restricted cash	447	(2,978)
Cash, cash equivalents and restricted cash - beginning of period	6,793	9,771
Cash, cash equivalents and restricted cash - end of period	7,240	6,793
Supplemental cash flow information
Interest paid	2,285	2,045
Income taxes paid	3,283	2,480
Fixed assets acquired under capital leases - non-cash	139	0
Finance Lease Obligations [Member]
Financing activities
Payments on finance lease obligations, net	(193)	(338)
Land and Buildings in Lebanon, Tennessee [Member]
Financing activities
Payments of principal on finance obligation	(118)	(88)
Unbilled Revenues [Member]
Changes in operating assets and liabilities
Unbilled accounts receivable	$ (5,053)	$ (9,814)