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Consolidated Statements of Operations (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Total other-than-temporary impairment net losses $ 7 $ 229
Other-than-temporary impairment losses, portion in other comprehensive income $ (350) $ 84
Non-voting common stock
   
Non voting common shares or exercised for Series B preferred shares when converted 170,000 0