Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Apr. 30, 2021	Apr. 30, 2020
Operating activities
Net loss	$ (843)	$ (2,521)
Adjustments to reconcile net loss to net cash flows (used in)/provided by operating activities
Depreciation and amortization	1,122	1,111
Deferred tax benefit	(157)	(362)
Stock-based compensation expense	272	219
Provision on uncollectible accounts	22	(62)
Changes in operating assets and liabilities
Accounts receivable	(2,634)	3,361
Inventories, net	(2,873)	468
Costs and estimated earnings in excess of billings on uncompleted contracts	1,806	(847)
Accounts payable	3,239	(977)
Accrued compensation and payroll taxes	221	900
Customers' deposits	128	(750)
Income taxes receivable and payable	302	56
Prepaid expenses and other current assets	(2,588)	(997)
Other assets and liabilities	(444)	997
Net cash (used in)/provided by operating activities	(2,427)	596
Investing activities
Capital expenditures	(424)	(775)
Net cash used in investing activities	(424)	(775)
Financing activities
Proceeds from revolving lines	69	15,186
Payments of debt on revolving lines	(4,168)	(16,003)
Payments of debt on mortgage	(892)
Proceeds from finance obligation, net of issuance costs	9,138
Payments of principal on finance obligation	(117)	(105)
Payments of other debt	(65)	(79)
Decrease in drafts payable	16	(44)
Net cash provided by/(used in) financing activities	3,947	(1,045)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	176	120
Net increase/(decrease) in cash, cash equivalents and restricted cash	1,272	(1,104)
Cash, cash equivalents and restricted cash - beginning of period	8,375	14,659
Cash, cash equivalents and restricted cash - end of period	9,647	13,555
Supplemental cash flow information
Interest paid	153	196
Income taxes paid	(35)	49
Land and Buildings in Lebanon, Tennessee [Member]
Financing activities
Payments of principal on finance obligation	$ (34)

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