Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Operating activities
Net income/(loss)	$ (7,642)	$ 3,576
Adjustments to reconcile net income/(loss) to net cash flows provided by operating activities
Depreciation and amortization	4,739	4,437
Deferred tax benefit	(669)	(213)
Stock-based compensation expense	1,044	1,011
Provision on uncollectible accounts	72	101
Loss on disposal of fixed assets	58	318
Changes in operating assets and liabilities
Accounts payable	730	(2,609)
Accrued compensation and payroll taxes	(1,597)	(576)
Inventories	2,418	(2,225)
Customers' deposits	(117)	(1,507)
Income taxes receivable and payable	213	(668)
Prepaid expenses and other current assets	(2,705)	1,749
Accounts receivable	3,394	1,749
Costs and estimated earnings in excess of billings on uncompleted contracts	(2,252)	(910)
Other assets and liabilities	2,479	(143)
Net cash provided by operating activities	165	4,090
Investing activities
Capital expenditures	(1,963)	(1,902)
Proceeds from sales of property and equipment	2
Net cash used in investing activities	(1,961)	(1,902)
Financing activities
Proceeds from revolving lines	40,023	73,225
Payments of debt on revolving lines	(43,192)	(72,973)
Proceeds from term loan	19
Payments of other debt	(371)	(358)
Decrease in drafts payable		(129)
Payments on finance lease obligations	(432)	(287)
Stock options exercised and taxes paid related to restricted shares vested	(191)	221
Net cash used in financing activities	(4,144)	(301)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(343)	34
Net increase/(decrease) in cash, cash equivalents and restricted cash	(6,283)	1,921
Cash, cash equivalents and restricted cash - beginning of period	14,658	12,737
Cash, cash equivalents and restricted cash - end of period	8,375	14,658
Supplemental cash flow information
Interest paid	540	902
Income taxes paid	107	2,107
Fixed assets acquired under finance leases - non-cash		$ 848