Derivative Financial Instruments (Details) $ in Thousands	Mar. 31, 2017 USD ($) position	Dec. 31, 2016 USD ($) position
Derivatives and other information
Notional amount	$ 209,918	$ 181,914
Position | position	619	515
Derivative asset	$ 2,476	$ 1,695
Derivative Liabilities	1,072	1,088
Collateral Pledged	324	323
Not designated as hedges
Derivatives and other information
Notional amount	$ 184,918	$ 156,914
Position | position	616	512
Derivative asset	$ 2,455	$ 1,695
Derivative Liabilities	1,061	1,032
Interest Rate Swap | Designated as Hedging Instrument
Derivatives and other information
Notional amount	$ 25,000	$ 25,000
Position | position	3	3
Derivative asset	$ 21
Derivative Liabilities	11	$ 56
Collateral Pledged	324	323
Matched interest rate swap with borrower | Not designated as hedges
Derivatives and other information
Notional amount	$ 25,048	$ 25,151
Position | position	4	4
Derivative Liabilities	$ 1,061	$ 1,032
Matched interest rate swap with counterparty | Not designated as hedges
Derivatives and other information
Notional amount	$ 25,048	$ 25,151
Position | position	4	4
Derivative asset	$ 1,061	$ 1,032
Interest rate lock commitments | Not designated as hedges
Derivatives and other information
Notional amount	$ 134,822	$ 106,612
Position | position	608	504
Derivative asset	$ 1,394	$ 663