CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Operating activities
Net income (loss)	$ 22,868	$ (2,958)
Adjustments to reconcile net income (loss) to net cash flows used in operating activities
Depreciation and amortization	4,465	4,373
Gain on disposal of discontinued operations	(9,762)	0
Deferred tax expense	93	353
Stock-based compensation expense	95	366
Income from joint venture	(248)	(354)
Cash surrender value of deferred compensation plan	(131)	(121)
Loss on disposal of fixed assets	305	57
Gain on disposal of subsidiary	(349)	0
Provision for uncollectible accounts	(114)	129
Changes in operating assets and liabilities
Accounts receivable	(24,049)	(6,512)
Inventories	3,044	1,302
Costs and estimated earnings in excess of billings on uncompleted contracts	1,227	(231)
Accounts payable	(7,052)	(522)
Accrued compensation and payroll taxes	4,329	(592)
Customers' deposits	1,669	1,870
Income taxes receivable and payable	2,220	(539)
Prepaid expenses and other current assets	(3,736)	64
Other assets and liabilities	(5,079)	1,693
Net cash used in operating activities	(10,205)	(1,622)
Investing activities
Net proceeds from sale of discontinued operations	15,253	0
Capital expenditures	(1,817)	(5,316)
Loan to joint venture	0	(989)
Proceeds from sales of property and equipment	8	94
Net cash provided by (used in) investing activities	13,444	(6,211)
Financing activities
Proceeds from debt	76,633	157,554
Payments of debt on revolving lines of credit	(70,446)	(143,820)
Payments of other debt	(6,817)	(3,292)
Decrease in drafts payable	(118)	(789)
Payments on capitalized lease obligations	(453)	(432)
Stock options exercised	911	35
Tax benefit of stock options exercised	0	15
Net cash (used in) provided by financing activities	(290)	9,271
Effect of exchange rate changes on cash and cash equivalents	539	(56)
Net increase in cash and cash equivalents	3,488	1,382
Cash and cash equivalents - beginning of period	7,034	4,209
Cash and cash equivalents - end of period	10,522	5,591
Supplemental cash flow information
Interest paid	1,694	1,718
Income taxes paid	396	133
Funds held in escrow related to the sale of Thermal Care, Inc. assets	$ 1,125	$ 0