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Fair Value of Financial Instruments and Fair Value Measurements - Schedule of Gains and Losses from Changes in Fair Value of Loans Held for Sale (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Fair Value Disclosures [Abstract]        
Interest income $ 79 $ 210 $ 124 $ 315
Change in fair value 60 (63) 169 (67)
Total change in fair value $ 139 $ 147 $ 293 $ 248