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Income Taxes - Components of Net Income Tax Asset (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Income Tax Disclosure [Abstract] |  |
Cost basis | $ 1,118 | $ 386
Deferred income | 247 | 151
Reserves | 3,735 | 11,035
Goodwill | 0 | 3,524
Excess interest expense carryforward | 4,508 | 5,299
Net operating loss carryforward | 5,829 | 6,805
Deferred Tax Assets, Gross | 15,437 | 27,200
Valuation allowance | 0 | (18,021)
Total deferred tax assets | 15,437 | 9,179
Built-in gain | (2,924) | (3,537)
Depreciation | (756) | (1,103)
Other | (546) | (267)
Total deferred tax liabilities | (4,226) | (4,907)
Net deferred tax asset | $ 11,211 | $ 4,272

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