Investment Securities, Held-to-maturity Securities, Loss Position (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Held to maturity unrecognized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	$ 10,576	$ 27,091
12 months or more - Fair Value	0	0
Total - Fair Value	10,576	27,091
Held to maturity unrecognized loss position - Gross Unrec. Loss [Abstract]
Less than 12 months - Gross Unrecognized Loss	41	138
12 months or more - Gross Unrecognized Loss	0	0
Total - Gross Unrecognized Loss	41	138
Mortgage-backed securities and collateralized mortgage obligations-residential [Member]
Held to maturity unrecognized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	10,576	27,091
12 months or more - Fair Value	0	0
Total - Fair Value	10,576	27,091
Held to maturity unrecognized loss position - Gross Unrec. Loss [Abstract]
Less than 12 months - Gross Unrecognized Loss	41	138
12 months or more - Gross Unrecognized Loss	0	0
Total - Gross Unrecognized Loss	$ 41	$ 138