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Securities Continuous Unrealized Loss (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 0	$ 31,889
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	0	447
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	169,935	157,875
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	3,132	5,183
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	169,935	189,764
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	3,132	5,630
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	4,724
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	0	28
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	49,159	44,307
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	763	1,172
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	49,159	49,031
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	763	1,200
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	12,325
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	0	238
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	107,503	99,184
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	2,143	3,500
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	107,503	111,509
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	2,143	3,738
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	14,840
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	0	181
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	13,273	14,384
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	226	511
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	13,273	29,224
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	$ 226	$ 692

X

- Definition

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

+ References

No definition available.

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- Definition

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months.

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