Portfolio Loans - Summary of Past Due and Impaired Loans (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Receivables [Abstract] | |||
| Total interest income that would have been recognized under original terms on impaired loans | $ 1,038 | $ 1,013 | $ 1,538 |
| Total cash received and recognized as interest income on impaired loans | 226 | 118 | 257 |
| Total interest income recognized on impaired loans still accruing | $ 36 | $ 39 | $ 16 |