Fair Value of Assets and Liabilities (Details 4) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017 USD ($) Issurers_Currently_Performing	Dec. 31, 2016 USD ($) Issurers_Currently_Performing
Additional information related to the Company's trust preferred securities
Available-for-sale Securities, Amortized Cost	$ 169,501	$ 183,625
Total debt securities, Fair Value	$ 165,099	$ 179,219
PreTSL XXIII | Moodys B2 Rating | Fitch C C C Rating
Additional information related to the Company's trust preferred securities
Class	C-2	C-2
Available-for-sale Securities, Amortized Cost	$ 759	$ 760
Total debt securities, Fair Value	309	310
Unrealized Gain/(Loss)	$ (450)	$ (450)
Number of Issuers Currently Performing | Issurers_Currently_Performing	90	90
Deferrals and Defaults as a % of Current Collateral	22.50%	22.50%
Excess Subordination as a % of Current Performing Collateral	5.48%	5.33%
Trapeza IX | Moodys Caa2 Rating | Fitch C C Rating
Additional information related to the Company's trust preferred securities
Class	B-1	B-1
Available-for-sale Securities, Amortized Cost	$ 860	$ 860
Total debt securities, Fair Value	518	515
Unrealized Gain/(Loss)	$ (342)	$ (345)
Number of Issuers Currently Performing | Issurers_Currently_Performing	32	32
Deferrals and Defaults as a % of Current Collateral	13.30%	13.30%
Trust preferred securities
Additional information related to the Company's trust preferred securities
Available-for-sale Securities, Amortized Cost	$ 1,619	$ 1,620
Total debt securities, Fair Value	827	825
Unrealized Gain/(Loss)	$ (792)	$ (795)