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Income Taxes (Components of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 12,285 | $ 12,218
Allowance for doubtful accounts | 262 | 212
Inventory valuation reserves | 1,109 | 1,185
Equity compensation | 4,216 | 1,769
Intangible assets and goodwill | 13,061 | 15,228
Foreign tax credit carryforwards | 0 | 841
Other | 2 | 32
Total gross deferred tax assets | 30,935 | 31,485
Valuation allowance | (835) | (19,460)
Total deferred tax assets, net | 30,100 | 12,025
Deferred tax liabilities: |  |
Property and equipment | (8,227) | (5,327)
Convertible debt | (4,785) | (8,559)
Prepaid insurance and other | (520) | (78)
Total gross deferred tax liabilities | (13,532) | (13,964)
Net deferred tax assets (liabilities) | 16,568 |
Net deferred tax assets (liabilities) |  | $ (1,939)

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