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11. Fair Value measurements (Details-Residual interest) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Residual Interest in Securitizations:    
Balance at beginning of period $ 854 $ 4,824
Cash paid (received) during period (522) (1,319)
Included in earnings 113 0
Balance at end of period $ 445 $ 3,505