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NEW WINDSOR PURCHASE (Narrative) (Details) |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Nov. 22, 2016 director $ / shares shares | Jan. 05, 2005 USD ($) | Sep. 30, 2017 USD ($) $ / shares | Dec. 31, 2016 USD ($)
Business Acquisition [Line Items] |  |  |  |
Value of transaction |  | $ 8,663,000 |  |
New Windsor |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of directors joining board | director | 2 |  |  |
Pro forma total assets |  |  |  | $ 1,510,000,000
Pro forma total deposits |  |  |  | 1,250,000,000
Pro forma loans |  |  |  | 1,150,000,000
Cash each shareholder may receive per share (in dollars per share) | $ / shares | $ 30.00 |  |  |
Percent of consideration paid as cash | 15.00% |  |  |
Merger related expenses |  |  |  | $ 472,000
New Windsor | Scenario, Forecast |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Value of transaction |  |  | $ 33,294,000 |
Value of transaction (in dollars per share) | $ / shares |  |  | $ 33.11 |
New Windsor | Common Stock |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of shares each shareholder may receive (in shares) | shares | 1.10 |  |  |
Percent of consideration paid as common stock | 85.00% |  |  |

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