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Certificates of Deposit (Tables) | 6 Months Ended
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Jun. 30, 2016
Banking and Thrift [Abstract] |
Certificates of deposit | The following table represents the breakdown of certificates of deposit at June 30, 2016 and 2015, and at December 31, 2015:
| June 30, 2016 |  | December 31, 2015 |  | June 30, 2015
Certificates of deposit < $100,000 | $ | 237,382,000 |  |  | $ | 158,529,000 |  |  | $ | 161,518,000 |
Certificates $100,000 to $250,000 | 199,599,000 |  |  | 175,077,000 |  |  | 278,429,000 |
Certificates $250,000 and over | 42,568,000 |  |  | 37,376,000 |  |  | 38,172,000 |
| $ | 479,549,000 |  |  | $ | 370,982,000 |  |  | $ | 478,119,000 |

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