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Related to asset backed securities pledged to secure certain deposits.

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Available for sale securities average life.

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Available for sale securities with unrealized losses average life guaranteed by issuer to credit risk.

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Average maturity period for available for sale securities with unrealized losses.

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Average maturity of a debt security categorized as held-to-maturity.

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Held to maturity securities average life guaranteed by issuer to credit risk.

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Average maturity of a debt security with unrealized losses categorized as held-to-maturity.

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Average maturity period for held to maturity securities with unrealized losses.

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Investments in notes or bonds that are collateralized by a specific group of underlying assets owned by the issuer of the notes or bonds which are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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The net gain (loss) realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

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Securities (Narrative) (Details) $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
Securities (Narrative) (Details) $ in Thousands	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($) security	Dec. 31, 2017 USD ($) security
Schedule of Trading Securities and Other Trading Assets [Line Items]
Asset-backed securities pledged to secure certain deposits		$ 35,500		$ 31,500
Asset-backed securities pledged as collateral		3,600		4,000
Amount		179,865		162,988
Amortized cost, available for sale		82,037		69,808
Gain (Loss) On Sale Of Securities, Net	$ 133		$ 133	175
Gross realized gains (loss) on sale of HTM securities			133
Securities held to maturity (HTM), at amortized cost		100,842		99,246
Securities available for sale (AFS), at fair value		79,026		68,164
Estimated Fair Value, held to maturity		98,000		98,007
Gross unrealized losses, available for sale		3,024		1,682
Gross unrealized losses, held to maturity		3,023		1,436
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	$ 9
Number Of Available For Sale Securities Sold \| security			3	3
Securities available for sale (AFS), at fair value	3,600		$ 3,600	$ 3,700
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
Nine Held To Maturity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Gross realized gains (loss) on sale of HTM securities				$ 166
Number Of Held To Maturity Securities Sold \| security				9
Securities held to maturity (HTM), at amortized cost				$ 4,800
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		6,912		7,265
Securities held to maturity (HTM), at amortized cost		27,486		29,113
Securities available for sale (AFS), at fair value		6,595		7,087
Estimated Fair Value, held to maturity		26,666		28,987
Gross unrealized losses, available for sale		317		178
Gross unrealized losses, held to maturity		914		261
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		62,811		45,283
Securities held to maturity (HTM), at amortized cost		54,099		54,805
Securities available for sale (AFS), at fair value		60,704		44,137
Estimated Fair Value, held to maturity		52,651		54,022
Gross unrealized losses, available for sale		2,120		1,158
Gross unrealized losses, held to maturity		$ 1,531		$ 845
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 10 months 24 days		4 years 8 months 27 days
Available for sale securities, average duration		4 years 3 months 7 days		4 years 2 months 19 days
Held to maturity securities, average life		5 years 1 month 2 days		4 years 11 months 12 days
Held to maturity securities, average duration		4 years 4 months 28 days		4 years 4 months 21 days
Available for sale securities with unrealized losses, average life		4 years 10 months 13 days		4 years 8 months 16 days
Available for sale securities with unrealized losses, average duration		4 years 3 months		4 years 2 months 12 days
Held to maturity securities with unrealized losses, average life				5 years 7 days
Held to maturity securities with unrealized losses, average duration				4 years 5 months 5 days
Securities held to maturity (HTM), at amortized cost				$ 81,700
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		3 years 1 month 24 days		3 years 2 months 12 days
Held to maturity securities with unrealized losses, average duration		2 years 6 months 26 days		2 years 7 months 28 days
Securities held to maturity (HTM), at amortized cost		$ 524		$ 599
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		5,013		5,017
Estimated Fair Value, held to maturity		4,887		4,974
Gross unrealized losses, held to maturity		126		43
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		569		651
Estimated Fair Value, held to maturity		524		599
Gross unrealized losses, held to maturity		45		52
Bond Mutual Funds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale				4,397
Securities available for sale (AFS), at fair value				4,423
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
Estimated Fair Value, held to maturity		$ 1,000		$ 1,000
Asset-backed Securities Or Bonds, Issued by US Government Sponsored Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Held to maturity securities with unrealized losses, average life		4 years 11 months 16 days
Held to maturity securities with unrealized losses, average duration		4 years 3 months 29 days
Securities held to maturity (HTM), at amortized cost		$ 80,200
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%
Amount		$ 179,296		$ 162,337
Standard Poor's, BB Rating [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amount		$ 569		$ 651