Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Operating activities
Net income	$ 983	$ 2,573
Adjustments to reconcile net income to net cash flows used in operating activities
Depreciation and amortization	1,926	2,261
Deferred tax expense	236	73
Stock-based compensation expense	520	548
Provision on uncollectible accounts	14	45
Loss on disposal of fixed assets	16	21
Changes in operating assets and liabilities
Accounts receivable	(5,860)	(19,273)
Inventories, net	(2,756)	(2,421)
Costs and estimated earnings in excess of billings on uncompleted contracts	(3,446)	3,313
Accounts payable	850	6,372
Accrued compensation and payroll taxes	(716)	1,422
Customers' deposits	1,380	692
Income taxes receivable and payable	(545)	388
Prepaid expenses and other current assets	(403)	(1,007)
Other assets and liabilities	2,251	1,977
Net cash used in operating activities	(11,172)	(5,225)
Investing activities
Capital expenditures	(2,030)	(912)
Proceeds from sales of property and equipment	69	12
Net cash used in investing activities	(1,961)	(900)
Financing activities
Proceeds from revolving lines	42,813	2,317
Payments of debt on revolving lines	(31,482)	(5,942)
Payments of debt on mortgage	0	(892)
Payments of principal on finance obligation	(178)	(117)
Payments of other debt	(146)	(130)
Increase/(decrease) in drafts payable	29	(1)
Repurchase of common stock	(43)	0
Stock options exercised and taxes paid related to restricted shares vested	(230)	(255)
Net cash provided by financing activities	10,719	4,341
Effect of exchange rate changes on cash, cash equivalents and restricted cash	336	135
Net decrease in cash, cash equivalents and restricted cash	(2,078)	(1,649)
Cash, cash equivalents and restricted cash - beginning of period	9,771	8,375
Cash, cash equivalents and restricted cash - end of period	7,693	6,726
Supplemental cash flow information
Interest paid	808	400
Income taxes paid	1,970	446
Fixed assets acquired under capital leases - non-cash	0	201
Land and Buildings in Lebanon, Tennessee [Member]
Financing activities
Payments of principal on finance obligation	(44)	(91)
Finance Lease Obligations [Member]
Financing activities
Proceeds from finance obligation, net of issuance costs	0	9,538
Payments of principal on finance obligation	(178)	(203)
Unbilled Revenues [Member]
Changes in operating assets and liabilities
Unbilled accounts receivable	$ (5,622)	$ (2,209)