Securities (Narrative) (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) security	Jun. 30, 2016 USD ($) security	Dec. 31, 2016 USD ($)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Asset-backed securities pledged to secure certain deposits	$ 25,400		$ 25,400		$ 21,500
Asset-backed securities pledged as collateral	4,300		4,300		1,600
Amount	156,609		156,609		157,830
Amortized cost, available for sale	55,096		55,096		54,565
Gain (Loss) On Sale Of Securities, Net	133	$ 39	133	$ 39
Gross realized gains (loss) on sale of HTM securities			133	39
Securities held to maturity (HTM), at amortized cost	106,842		106,842		109,247
Securities available for sale (AFS), at fair value	54,288		54,288		53,033
Estimated Fair Value, held to maturity	106,775		106,775		108,034
Gross unrealized losses, available for sale	876		876		1,577
Fair value of HTM Securities with unrealized losses	61,900		61,900		85,000
Gross unrealized losses, held to maturity	687		687		1,715
Three Available For Sale Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Gross realized gains on sale of AFS securities			$ 9	$ 31
Number Of Available For Sale Securities Sold | security			3	3
Securities available for sale (AFS), at fair value	3,600	2,400	$ 3,600	$ 2,400
One Held To Maturity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Gross realized gains (loss) on sale of HTM securities				$ 8
Number Of Held To Maturity Securities Sold | security				1
Securities held to maturity (HTM), at amortized cost		$ 698		$ 698
Six Held To Maturity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Gross realized gains (loss) on sale of HTM securities			$ 124
Number Of Held To Maturity Securities Sold | security			6
Securities held to maturity (HTM), at amortized cost	3,400		$ 3,400
Residential Mortgage Backed Securities Issued By US Government Sponsored Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	6,229		6,229		4,377
Securities held to maturity (HTM), at amortized cost	30,612		30,612		34,735
Securities available for sale (AFS), at fair value	6,146		6,146		4,183
Estimated Fair Value, held to maturity	30,951		30,951		34,533
Gross unrealized losses, available for sale	83		83		194
Gross unrealized losses, held to maturity	74		74		569
Residential Collateralized Mortgage Obligations, Issued By US Government Sponsored Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	34,185		34,185		35,176
Securities held to maturity (HTM), at amortized cost	60,500		60,500		63,060
Securities available for sale (AFS), at fair value	33,606		33,606		34,228
Estimated Fair Value, held to maturity	60,241		60,241		62,393
Gross unrealized losses, available for sale	595		595		966
Fair value of AFS Securities with unrealized losses	47,000		47,000		46,100
Gross unrealized losses, held to maturity	449		$ 449		$ 802
Asset-backed Securities, Issued by US Government Sponsored Enterprises and U.S. Agencies [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available for sale securities, average life			4 years 6 months 26 days		4 years 11 months 16 days
Available for sale securities, average duration			4 years 1 month 10 days		4 years 5 months 5 days
Held to maturity securities, average life			4 years 8 months 9 days		5 years 3 months 18 days
Held to maturity securities, average duration			4 years 2 months 12 days		4 years 8 months 16 days
Available for sale securities with unrealized losses, average life			4 years 7 months 6 days		4 years 10 months 28 days
Available for sale securities with unrealized losses, average duration			4 years 1 month 21 days		4 years 4 months 13 days
Held to maturity securities with unrealized losses, average life			4 years 6 months 22 days		5 years 22 days
Held to maturity securities with unrealized losses, average duration			4 years 1 month 10 days		4 years 5 months 27 days
Amortized cost, available for sale	50,600		$ 50,600		$ 50,100
Securities held to maturity (HTM), at amortized cost	100,100		100,100		108,400
Gross unrealized losses, available for sale	876		876		1,600
Fair value of HTM Securities with unrealized losses	61,300		61,300		84,200
Gross unrealized losses, held to maturity	625		$ 625		$ 1,600
Asset-backed Securities, Issued by Private Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Held to maturity securities with unrealized losses, average life			2 years 11 months 16 days		4 years 1 month 24 days
Held to maturity securities with unrealized losses, average duration			2 years 5 months 9 days		3 years 3 months 15 days
Securities held to maturity (HTM), at amortized cost	740		$ 740		$ 884
Fair value of HTM Securities with unrealized losses	678		678		803
Gross unrealized losses, held to maturity	62		62		81
US Government Agencies Callable Agency Bonds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities held to maturity (HTM), at amortized cost	5,020		5,020		3,001
Estimated Fair Value, held to maturity	5,030		5,030		2,991
Gross unrealized losses, held to maturity					10
Residential Collateralized Mortgage Obligations, Issued By Private Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities held to maturity (HTM), at amortized cost	740		740		884
Estimated Fair Value, held to maturity	678		678		803
Gross unrealized losses, held to maturity	62		62		81
Corporate Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	37		37		37
Securities available for sale (AFS), at fair value	37		37		37
Bond Mutual Funds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	4,432		4,432		4,386
Securities available for sale (AFS), at fair value	4,484		4,484		4,413
US Government Obligations [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities held to maturity (HTM), at amortized cost	1,000		1,000		850
Estimated Fair Value, held to maturity	$ 1,000		$ 1,000		$ 850
Standard Poor's, AAA Rating [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Percentage of asset backed securities in investment portfolio	99.00%		99.00%		99.00%
Amount	$ 155,869		$ 155,869		$ 156,947
Standard Poor's, BB Rating [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amount	$ 740		$ 740		411
Standard Poor's, B+ Rating [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amount					$ 472