Consolidated Statement of Financial Condition (Parenthetical) - USD ($) $ in Thousands |
Jun. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Consolidated Statements of Financial Condition [Abstract] | ||
| Held-to-maturity securities, fair value | $ 89,242 | $ 95,346 |
| Common Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01 |
| Common Stock, Shares Authorized | 25,000,000 | 25,000,000 |
| Common Stock, Shares, Issued | 7,082,443 | 7,082,443 |
| Common Stock, Shares, Outstanding | 7,082,443 | 7,082,443 |