Investment Securities (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Feb. 28, 2014	Dec. 31, 2013
Amortized cost and fair value of debt securities by contractual maturity
Available-for-sale Securities, Amortized Cost	$ 164,487	$ 10,000	$ 165,219
Total debt securities, Fair value	162,525		160,886
Available-for-sale Securities
Amortized cost and fair value of debt securities by contractual maturity
Amortized Cost, Due in one year or less	236
Amortized Cost, Due after one year through five years	2,404
Amortized Cost, Due after five years through ten years	15,778
Amortized Cost, Due after ten years	40,052
Amortized Cost, Total	58,470
Fair Value, Due in one year or less	242
Fair Value, Due after one year through five years	2,439
Fair Value, Due after five years through ten years	15,760
Fair Value, Due after ten years	39,041
Fair Value, Total	57,482
U.S. Government-sponsored mortgage-backed and related securities
Amortized cost and fair value of debt securities by contractual maturity
Available-for-sale Securities, Amortized Cost	102,968
Total debt securities, Fair value	101,994
Total debt securities
Amortized cost and fair value of debt securities by contractual maturity
Available-for-sale Securities, Amortized Cost	161,438		162,170
Total debt securities, Fair value	$ 159,476		$ 157,837