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%