Derivatives and Hedging Activities (Textual) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge	5 years
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 153,000
Gain (Loss) on Sales of Loans, Net	980,000	$ 894,000
Exposure to Institutional Counterparties	5,500,000		$ 4,700,000
Amortization Of Deferred Hedge Gains Losses	61,000	61,000	244,000
Notional amount of fair value hedged derivative	0
Customer related positions	13,400,000		16,100,000
Change in Fair Value on Loans Held for Sale	(147,000)	$ 54,000	87,000
Derivative, Notional Amount	$ 75,000,000		$ 75,000,000