Fair Value Measurements (Details 3) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Total realized/unrealized gains (losses):
Sales	$ 0	$ 0
Purchases	0	0	0
Transfers	0	0
Paydowns received on Level 3 assets measured on a recurring basis		3,600,000
Securities Available-for-Sale
Level 3 Assets Measured on a Recurring Basis
Balance, beginning of period	3,633,000	65,187,000	65,187,000
Total realized/unrealized gains (losses):
Included in other comprehensive income	(17,000)	(199,000)
Settlements		(3,555,000)
Other (1)		52,000
Balance, end of period	$ 3,616,000	$ 61,485,000