CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Document Period End Date	Apr. 30, 2013
Operating activities
Net income (loss)	$ 11,081	$ (2,056)
Adjustments to reconcile net income (loss) to net cash flows used in operating activities
Depreciation and amortization	1,530	1,364
Gain on disposal of discontinued operations	(11,401)	0
Deferred tax expense (benefit)	2,667	(490)
Stock-based compensation expense	119	86
Loss from joint venture	295	246
Cash surrender value of deferred compensation plan	(59)	(86)
(Gain) loss on disposal of fixed assets	(161)	1
Provision for uncollectible accounts	15	(9)
Changes in operating assets and liabilities
Accounts receivable	(14,534)	(4,542)
Inventories	2,805	(1,461)
Costs and estimated earnings in excess of billings on uncompleted contracts	149	(772)
Accounts payable	(1,629)	(658)
Accrued compensation and payroll taxes	1,340	394
Customers' deposits	697	1,237
Income taxes receivable and payable	497	(237)
Prepaid expenses and other current assets	(1,028)	(451)
Other assets and liabilities	(5,321)	1,996
Net cash used in operating activities	(12,938)	(5,438)
Investing activities
Net proceeds from sale of discontinued operations	14,998	0
Additions to property, plant and equipment	(440)	(2,561)
Loan to joint venture	0	(989)
Net cash provided by (used in) investing activities	14,558	(3,550)
Financing activities
Borrowings	40,813	55,106
Repayment of debt	(38,877)	(45,123)
Decrease in drafts payable	1,412	1,858
Payments on capitalized lease obligations	(153)	(106)
Stock options exercised	50	12
Net cash provided by financing activities	3,245	11,747
Effect of exchange rate changes on cash and cash equivalents	(917)	113
Net increase in cash and cash equivalents	3,948	2,872
Cash and cash equivalents - beginning of period	7,035	4,209
Cash and cash equivalents - end of period	10,983	7,081
Supplemental cash flow information
Interest paid	633	539
Income taxes paid	153	85
Funds held in escrow related to the sale of Thermal Care, Inc. assets	$ 1,125	$ 0