Mortgage Banking (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Residential Mortgage Loans, Unpaid Balance		$ 1,350,000,000	$ 1,370,000,000
Escrow Deposit		10,900,000	10,400,000
Weighted Average Prepayment Rate		209 prepayment speed assumption (PSA)	212 PSA
Weighted Average Discount Rate		10.04%	10.04%
Adverse Changes In Fair Value One		10.00%
Adverse Changes In Fair Value Two		20.00%
Accrual For Estimated Secondary Market Buy Back Losses		359,000
Accrual Reversal Amount	67,000
Secondary Market Buy Back Expense		$ 298,000	$ 597,000	$ 73,000