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Certificates of Deposit (Tables) | 6 Months Ended
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Jun. 30, 2018
Banking and Thrift [Abstract] |
Certificates of Deposit | The following table represents the breakdown of certificates of deposit at June 30, 2018 and 2017, and at December 31, 2017:
| June 30, 2018 |  | December 31, 2017 |  | June 30, 2017
Certificates of deposit < $100,000 | $ | 400,680,000 |  |  | $ | 284,066,000 |  |  | $ | 270,875,000 |
Certificates $100,000 to $250,000 | 204,311,000 |  |  | 232,759,000 |  |  | 212,063,000 |
Certificates $250,000 and over | 52,400,000 |  |  | 42,176,000 |  |  | 44,556,000 |
| $ | 657,391,000 |  |  | $ | 559,001,000 |  |  | $ | 527,494,000 |

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