Repurchase Agreements and Other Borrowings (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Repurchase Agreements and Other Borrowings [Abstract]
Securities Sold under Agreements to Repurchase	$ 132,435	$ 155,388
Securities Sold under Agreements to Repurchase Increase (Decrease)	(23,000)
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	$ 132,435	155,388
Securities Sold Under Agreements to Repurchase Weighted Average Rate	0.14%
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 60,024	60,038
FHLB advance, 3-Year Original Maturity 2 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	3-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.30%
FHLB advance, 2-Year Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	2-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	0.99%
FHLB advance, 3-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 10,000
Federal Home Loan Bank Advances, Original Maturity Term	3-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.42%
FHLB Advance, 1.5-Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	1.5-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.49%
FHLB Advance, 2-Year Original Maturity 2 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	2-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.56%
FHLB Advance 2.5 Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	2.5-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.67%
FHLB Advance 3 Year Original Maturity 3 [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	3-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.75%
FHLB advance, 6-Year Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	6-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.30%
FHLB Advance 3.5 Year Original Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	3.5-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.83%
FHLB Advance, 7 Year Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	7-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.55%
FHLB advance, 8-Year Maturity [Member]
FHLB Advances [Abstract]
Federal Home Loan Bank Advances Short and Long Term	$ 5,000
Federal Home Loan Bank Advances, Original Maturity Term	8-year maturity
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.40%
U.S. Treasury securities and obligations of U.S. government corporations & agencies
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	$ 87,378	100,895
Residential Mortgage-backed Securities [Member]
Disclosure of Repurchase Agreements [Abstract]
Securities pledged to Repurchase Agreements	$ 45,057	$ 54,493

FHLB Advances Terms

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Federal Home Loan Bank Advances, Original Term

+ References

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Short-term and long-term Federal Home Loan Bank borrowings.

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The increase (decrease) in the carrying value as of the balance sheet date of securities that an institution sells and agrees to repurchase (the identical or substantially the same securities) as a seller-borrower at a specified date for a specified price, also known as a repurchase agreement, or repo. Most repos involve obligations of the federal government or its agencies, but other financial instruments, such as commercial paper, banker's acceptances, and negotiable certificates of deposit, are sometimes used in repos.

+ References

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Securities Sold Under Agreements to Repurchase Weighted Average Rate

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Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=64858031&loc=SL6224234-111729

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- Definition

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Repurchase Agreement Accounted for as a Collateralized Borrowing
-URI http://asc.fasb.org/extlink&oid=49203159

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