Securities - Realized Gains and Losses (Narrative) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) security	Jun. 30, 2015 USD ($) security	Dec. 31, 2015 USD ($)
Schedule of Investments [Line Items]
Available-for-sale Securities, impairment on securities					$ 0
Available-for-sale Securities, gross realized gain (loss)	$ 81,000	$ 28,000	$ 175,000	$ 28,000
Available-for-sale Securities pledged as collateral					$ 18,500,000
Municipal Securities
Schedule of Investments [Line Items]
Available-for-sale Securities, gross realized gain (loss)			$ 112,000
Number of securities sold | security			15
Available-for-sale Securities, book value	6,400,000		$ 6,400,000
Equity Securities
Schedule of Investments [Line Items]
Available-for-sale Securities, gross realized gain (loss)			$ 63,000
Number of securities sold | security			1
Available-for-sale Securities, book value	$ 40,000		$ 40,000
Corporate Bond
Schedule of Investments [Line Items]
Available-for-sale Securities, gross realized gain (loss)				$ 28,000
Number of securities sold | security				1
Available-for-sale Securities, book value		$ 500,000		$ 500,000