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Income Taxes - Deferred Income Taxes (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Deferred tax assets:    
Net operating loss carryforwards $ 30,765 $ 30,028
Capital loss carryforwards 109 109
Inventory and other allowances 31 34
Charitable contribution carryforwards 5 3
Excess (tax) book depreciation 492 361
Excess (tax) book amortization 62 60
Share-based compensation 1,253 1,159
Other accrued costs 279 279
Total deferred tax assets 32,996 32,033
Less: Valuation allowance (32,996) (32,033)
Deferred income taxes