Investment Securities (Narrative) (Details) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Investment [Line Items]
Percentage of Bank portfolio	55.80%	51.50%
Held to maturity, securities	$ 0	$ 0
Securities pledged as collateral	0	0
Proceeds from sales of securities, available for sale	67,002,000	34,592,000	$ 57,037,000
Gross realized gain on sale of securities	892,000	776,000	1,100,000
Gross realized losses on sale of securities	$ 88,000	$ 68,000	$ 71,000
Banks, thrifts or other depository institutions to all projected defaults
Investment [Line Items]
Collateral recovery probability percentage	10.00%
Insurance Companies to all projected insurance defaults
Investment [Line Items]
Collateral recovery probability percentage	15.00%

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- Definition

The fair value of available-for-sale debt securities that serve as collateral for borrowings.

+ References

No definition available.

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- Definition

Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

No definition available.

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- Definition

Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

No definition available.

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- Definition

Percentage of expected recoveries to remaining performing collateral

+ References

No definition available.

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- Definition

Percentage Of Total Investment Portfolio In Unrealized Loss Position Fair Value

+ References

No definition available.

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- Definition

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
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The cash inflow associated with the sale of debt securities classified as available-for-sale securities.

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