Derivative Financial Instruments (Details) - Interest Rate Swap - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Commercial Customer
Derivative [Line Items]
Derivative Asset, Notional Amount	$ 183,067	$ 185,637
Maturity	3 years 1 month 6 days	3 years 4 months 24 days
Fair Value of assets, Net total	$ (26)	$ 609
Commercial Customer | Maximum
Derivative [Line Items]
Fixed Rate, rate range	5.72%	5.72%
Commercial Customer | Minimum
Derivative [Line Items]
Fixed Rate, rate range	4.10%	2.19%
Commercial Customer | LIBOR | Maximum
Derivative [Line Items]
Floating Rate Spread, range	4.25%	4.25%
Commercial Customer | LIBOR | Minimum
Derivative [Line Items]
Floating Rate Spread, range	2.50%	0.00%
Correspondent
Derivative [Line Items]
Derivative Liability, Notional Amount	$ 183,067	$ 185,637
Maturity	3 years 1 month 6 days	3 years 4 months 24 days
Fair Value of liabilities, Net total	$ (27)	$ (691)
Correspondent | Maximum
Derivative [Line Items]
Fixed Rate, rate range	5.72%	5.72%
Correspondent | Minimum
Derivative [Line Items]
Fixed Rate, rate range	4.10%	2.19%
Correspondent | LIBOR | Maximum
Derivative [Line Items]
Floating Rate Spread, range	4.25%	4.25%
Correspondent | LIBOR | Minimum
Derivative [Line Items]
Floating Rate Spread, range	2.50%	0.00%