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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
 9 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Cash flows from operating activities:    
Net income (loss) $ (8,194,991) $ 1,170,654
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Arbitration award in Brazil 7,873,847 0
Provision for inventory obsolescence 300,000 (37,000)
Provision for doubtful accounts (30,000) 0
Deferred income taxes (1,209,562) 28,786
Depreciation and amortization 1,128,784 1,207,135
Stock based and restricted stock compensation 353,635 499,493
(Increase) decrease in operating assets:    
Accounts receivable (3,416,523) (1,030,161)
Inventories 2,591,044 (2,158,394)
Prepaid income taxes and other current assets (760,075) (1,095,559)
Other assets (370,858) 1,692,670
Assets of discontinued operations 8,507 688,760
Increase (decrease) in operating liabilities:    
Accounts payable 3,482,073 (1,114,219)
Accrued expenses and other liabilities 408,254 (1,431,087)
Liabilities of discontinued operations (45,129) 332,267
Arbitration settlement payments (503,539) 0
Net cash provided by (used in) operating activities 1,615,467 (1,246,655)
Cash flows from investing activities:    
Purchases of property and equipment (1,291,197) (3,734,007)
Net cash used in investing activities (1,291,197) (3,734,007)
Cash flows from financing activities:    
Net borrowings (repayments) under credit agreement, net of reclassification to term loans (1,898,925) 1,219,934
Proceeds from term loans net of repayments 2,280,000 3,725,000
Canada loan repayments (175,150) (73,420)
Brazil borrowings (repayments) (542,489) 587,337
Purchases of stock under stock repurchase program 0 (339,371)
Other liabilities (15,558) (925)
Shares returned in lieu of taxes under restricted stock program-cash paid (131,223) (50,429)
VAT taxes payable 10,040 3,035
Net cash provided by (used in) financing activities (473,305) 5,071,161
Effect of exchange rate changes on cash (10,268) (96,917)
Net decrease in cash and cash equivalents (159,303) (6,418)
Cash and cash equivalents at beginning of period 5,711,038 5,953,069
Cash and cash equivalents at end of period $ 5,551,735 $ 5,946,651