CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2016	Oct. 31, 2015
Operating activities
Net loss	$ (9,608)	$ (932)
Adjustments to reconcile net loss to net cash flows used in operating activities
Depreciation and amortization	4,258	4,425
Loss on consolidation of joint venture	1,620	0
Gain on disposal of subsidiaries	(186)	0
Deferred tax (benefit) expense	(93)	479
Stock-based compensation expense (benefit)	184	137
Income from joint venture	0	(524)
Cash surrender value on life insurance policies	(136)	(2)
(Gain) loss on disposal of fixed assets	292	(1)
Provision on uncollectible accounts	500	476
Changes in operating assets and liabilities
Accounts receivable	14,860	(17,820)
Inventories	4,709	(5,687)
Costs and estimated earnings in excess of billings on uncompleted contracts	(736)	(589)
Accounts payable	(5,268)	11,206
Accrued compensation and payroll taxes	(9,047)	5,686
Customers' deposits	(1,880)	(1,326)
Income taxes receivable and payable	671	(98)
Prepaid expenses and other current assets	(742)	1,356
Other assets and liabilities	(3,614)	(6,575)
Net cash used in operating activities	(4,800)	(9,787)
Investing activities
Acquisition of interest in subsidiary, net of cash acquired	(4,672)	0
Capital expenditures	(1,544)	(5,971)
Proceeds from surrender of corporate-owned life insurance policies	1,894	0
Receipts on loan from joint venture	0	1,890
Proceeds from sales of property and equipment	13,962	0
Net cash provided by (used in) investing activities	9,640	(4,081)
Financing activities
Proceeds from revolving lines	32,908	79,175
Proceeds from debt	6,048	783
Proceeds from borrowing against life insurance policies	0	1,916
Payments of debt on revolving lines of credit	(39,807)	(63,177)
Payments of other debt	(10,077)	(1,699)
Payments of borrowing against life insurance policies	0	(1,916)
Decrease in drafts payable	(184)	(122)
Payments on capitalized lease obligations	(1,429)	(659)
Payments for repurchase of common stock	0	(290)
Stock options exercised and restricted shares issued	363	(15)
Net cash (used in) provided by financing activities	(12,178)	13,996
Effect of exchange rate changes on cash and cash equivalents	(285)	246
Net (decrease) increase in cash and cash equivalents	(7,623)	374
Cash and cash equivalents - beginning of period	16,631	10,508
Cash and cash equivalents - end of period	9,008	10,882
Supplemental cash flow information
Interest paid	605	836
Income taxes paid	1,281	849
Fixed assets acquired under capital lease	0	1,215
Funds held in escrow related to the sale of Filtration assets	$ 502	$ 0