Derivative Financial Instruments (Balance sheet and income statement category and fair value of embedded derivatives) (Details) - Embedded derivatives - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2016	Dec. 31, 2015
Other noninterest income
Derivative [Line Items]
Gain (Loss) Recognized	$ 144	$ 0	$ 416	$ 0
Other assets
Derivative [Line Items]
Notional Amount	14,786	15,020	14,786	15,020
Fair Value	$ 1,990	$ 1,574	$ 1,990	$ 1,574