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Consolidated Statements of Shareholders Equity (Parenthetical) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Statement of Stockholders' Equity [Abstract] |  |
Tax on marketable equity securities | $ 770,000 | $ 1,168,000
Cash issued to noncontrolling shareholder for future earn-in | $ 500,000 | $ 300,000

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