Fair Values (Schedule of Fair Value Measurement) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($) Loan	Dec. 31, 2015 USD ($) Loan
Assets and liabilities recorded at fair value
Payments to acquire available-for-sale securities	$ 4,400
Recurring basis | Significant other observable inputs (Level 2)
Assets and liabilities recorded at fair value
Derivative assets	407	$ 1,522
Derivative liabilities	929	131
Recurring basis | Significant unobservable inputs (Level 3)
Assets and liabilities recorded at fair value
Available-for-sale securities	5,536	1,161
Non-recurring basis | Appraisal | Loans Receivable One
Assets and liabilities recorded at fair value
Impaired loans	$ 5,200
Number of impaired loans | Loan	1
Non-recurring basis | Discounted Cash Flow Valuation Technique | Loans Receivable Two
Assets and liabilities recorded at fair value
Impaired loans		$ 3,200
Number of impaired loans | Loan		1
Discount rate		14.30%
Non-recurring basis | Significant unobservable inputs (Level 3)
Assets and liabilities recorded at fair value
Impaired loans	$ 5,200	$ 3,200
Fair Value | Recurring basis
Assets and liabilities recorded at fair value
Derivative assets	407	1,522
Derivative liabilities	929	131
Available-for-sale securities	5,536	1,161
Fair Value | Non-recurring basis
Assets and liabilities recorded at fair value
Impaired loans	$ 5,200	$ 3,200