Deposits (Narrative) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) customer	Dec. 31, 2017 USD ($) customer
Deposits	$ 1,429,629	$ 1,106,237
Time deposits $250000 or more	$ 117,200	167,500
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Concentration Risk, Percentage	2.00%
Concentration Risk, Customer With Deposits Exceeding Threshold \| customer	1
Executive Officers And Directors [Member]
Deposits	$ 7,900	9,200
One Customer With Deposits With Company [Member] \| Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Deposits	$ 158,800	$ 22,600
Concentration Risk, Percentage		2.00%
Concentration Risk, Customer With Deposits Exceeding Threshold \| customer		1
Concertration Risk, Percentage Of Total Deposits	11.10%	2.00%

Concentration Risk, Customer With Deposits Exceeding Threshold

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- Definition

Concertration Risk, Percentage of Total Deposits

+ References

No definition available.

+ Details

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- Definition

" The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $250,000 or more."

+ References

No definition available.

+ Details

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611

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- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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- Details

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- Details

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- Details

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