Recent Developments Recent Developments (Details) - Bank of America [Member]	Jan. 22, 2016 USD ($) branch	Dec. 31, 2015 USD ($)
Subsequent Event [Line Items]
Business acquisition costs		$ 876,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Proposed business acquisition, number of retail branches | branch	4
Net book value of acquired business	$ 1,100,000
Deposit premium percent	2.50%
Deposit premium amount	$ 4,800,000
Cash acquired from acquisition	180,400,000
Deposits	186,400,000
Performing loans acquired	1,100,000
Portion at Other than Fair Value Measurement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Cash and cash equivalents	180,356,000
Loans receivable	417,000
Premises and equipment, net	697,000
Accrued interest receivable	2,000
Core deposit intangible	0
Goodwill	0
Other assets	103,000
Total assets acquired	181,575,000
Deposits	186,364,000
Accrued interest payable	7,000
Other liabilities	22,000
Total liabilities assumed	186,393,000
Changes Measurement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Cash and cash equivalents	0
Loans receivable	0
Premises and equipment, net	267,000
Accrued interest receivable	0
Core deposit intangible	2,139,000
Goodwill	2,412,000
Other assets	0
Total assets acquired	4,818,000
Deposits	0
Accrued interest payable	0
Other liabilities	0
Total liabilities assumed	0
Carrying Amount | Subsequent Event [Member]
Subsequent Event [Line Items]
Cash and cash equivalents	180,356,000
Loans receivable	417,000
Premises and equipment, net	964,000
Accrued interest receivable	2,000
Core deposit intangible	2,139,000
Goodwill	2,412,000
Other assets	103,000
Total assets acquired	186,393,000
Deposits	186,364,000
Accrued interest payable	7,000
Other liabilities	22,000
Total liabilities assumed	$ 186,393,000