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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Statement of Financial Position [Abstract] |  |
Allowance for doubtful accounts | $ 1,705 | $ 929
Property and equipment, accumulated depreciation | 36,456 | 31,657
Intangible assets, accumulated amortization | $ 2,005 | $ 826
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred stock, shares authorized | 1,000,000 | 1,000,000
Preferred stock, shares issued | 0 | 0
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares authorized | 30,000,000 | 30,000,000
Common stock, shares issued | 16,936,128 | 16,563,836
Common stock, shares outstanding | 15,277,137 | 14,904,845
Treasury stock, shares outstanding | 1,658,991 | 1,658,991

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