CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Operating activities
Net loss	$ (11,678)	$ (4,409)
Adjustments to reconcile net loss to net cash flows used in operating activities
Depreciation and amortization	5,521	5,929
Loss on consolidation of joint venture	1,620	0
Gain on disposal of discontinued operations	(127)	(8,099)
Impairment expense on discontinued operations	0	6,480
Deferred tax benefit	(33)	(249)
Income in joint venture	0	(602)
Stock-based compensation expense	389	278
Cash surrender value on life insurance policies	(135)	206
Provision on uncollectible accounts	657	(59)
(Gain) loss on disposal of fixed assets	(292)	101
Changes in operating assets and liabilities
Accounts payable	(1,917)	5,819
Accrued compensation and payroll taxes	(9,227)	299
Inventories	5,452	4,027
Customers' deposits	(2,303)	(2,400)
Income taxes receivable and payable	(128)	620
Prepaid expenses and other current assets	(997)	1,914
Accounts receivable	13,698	(2,809)
Costs and estimated earnings in excess of billings on uncompleted contracts	296	(1,268)
Other assets and liabilities	(5,027)	(8,675)
Net cash used in operating activities	(4,231)	(2,897)
Investing activities
Net proceeds from sale of discontinued operations	9,606	16,373
Capital expenditures	(2,257)	(6,457)
Proceeds from surrender of corporate-owned life insurance policies	3,185	0
Acquisition of interest in subsidiary, net of cash acquired	(4,672)	0
Receipts on loan from joint venture	0	1,890
Proceeds from sales of property and equipment	4,356	2,059
Net cash provided by investing activities	10,218	13,865
Financing activities
Proceeds from revolving lines	40,033	105,636
Proceeds from debt	6,059	918
Proceeds from borrowing against life insurance policies	0	1,916
Payments of debt on revolving lines	(49,303)	(105,378)
Payments of other debt	(10,151)	(2,544)
Payments from borrowing against life insurance policies	0	(1,916)
Decrease in drafts payable	(323)	(467)
Payments on capitalized lease obligations	(1,677)	(998)
Release (repurchase) of Common Stock	120	(290)
Stock options exercised and restricted shares issued	297	98
Net cash used in financing activities	(14,945)	(3,025)
Effect of exchange rate changes on cash and cash equivalents	(70)	(1,212)
Net (decrease) increase in cash and cash equivalents	(9,028)	6,731
Cash and cash equivalents - beginning of period	16,631	9,900
Cash and cash equivalents - end of period	7,603	16,631
Supplemental cash flow information
Interest paid	773	749
Income taxes paid	1,381	970
Fixed assets acquired under capital leases	8	0
Funds held in escrow related to the sale of Filtration assets	$ 502	$ 1,905