CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2017	Jul. 31, 2016
Operating activities
Net loss	$ (5,187)	$ (6,290)
Adjustments to reconcile net loss to net cash flows used in operating activities
Depreciation and amortization	2,509	2,830
Gain on disposal of subsidiaries	0	(867)
Deferred tax benefit	(260)	(277)
Stock-based compensation expense	521	582
Loss on consolidation of joint venture	0	1,620
Cash surrender value on life insurance policies	0	(132)
Loss (gain) on disposal of fixed assets	(2)	2,364
Provision on uncollectible accounts	(298)	400
Gain from sale of marketable securities	(142)	0
Changes in operating assets and liabilities
Accounts receivable	5,355	16,277
Inventories	(2,317)	5,004
Costs and estimated earnings in excess of billings on uncompleted contracts	(1,065)	(296)
Accounts payable	(713)	(4,889)
Accrued compensation and payroll taxes	(1,019)	(5,884)
Customers' deposits	489	(1,824)
Income taxes receivable and payable	(1,442)	(1,418)
Prepaid expenses and other current assets	(513)	(1,233)
Other assets and liabilities	1,252	(2,140)
Net cash used in operating activities	(2,828)	(901)
Investing activities
Acquisition of interest in subsidiary, net of cash acquired	0	(4,672)
Capital expenditures	(1,526)	(994)
Proceeds from surrender of corporate-owned life insurance policies	0	1,894
Proceeds from sale marketable securities	142	0
Proceeds from sales of property and equipment	1	11,930
Net cash (used in) provided by investing activities	(1,383)	8,158
Financing activities
Proceeds from revolving lines	16,936	21,113
Proceeds from debt	0	6,147
Payments of debt on revolving lines of credit	(13,237)	(29,835)
Payments of other debt	(120)	(10,044)
Increase (decrease) in drafts payable	285	(248)
Borrowings (payments) on capitalized lease obligations	567	(1,204)
Release of treasury stock	170	0
Stock options exercised and restricted shares issued	(256)	309
Net cash provided by (used in) financing activities	4,345	(13,762)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	604	104
Net increase (decrease) in cash, cash equivalents and restricted cash	738	(6,401)
Cash, cash equivalents and restricted cash - beginning of period	8,701	18,955
Cash, cash equivalents and restricted cash - end of period	9,439	12,554
Supplemental cash flow information
Interest paid	362	457
Income taxes paid	524	1,142
Fixed assets acquired under capital leases	697	0
Funds held in escrow related to the sale of Filtration assets	$ 250	$ 502