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Income Tax Components of deferred tax assets and liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Deferred tax assets:    
Compensation and benefits $ 14,101 $ 16,048
Net operating loss carryforward 12,710 4,286
Inventory reserve 3,654 2,472
Accounts receivable reserve 657 723
Property, plant and equipment 0 879
Other 4,694 1,147
Total deferred tax assets 35,816 25,555
Deferred tax liabilities:    
Property, plant and equipment 738 0
Goodwill 0 6,557
Other 728 480
Total deferred liabilities 1,466 7,037
Net deferred assets before valuation allowance 34,350 18,518
Valuation allowance (34,278) (938)
Net deferred assets 72 17,580
Net deferred tax assets:    
Net current deferred tax assets 17 5,716
Net noncurrent deferred tax assets 55 11,864
Net deferred assets $ 72 $ 17,580