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Available-for-Sale Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Summary of amortized cost and fair values with gross unrealized gains and losses of available-for-sale securities
Amortized Cost	$ 90,052	$ 88,805
Gross Unrealized Gains	803	1,411
Gross Unrealized Losses	(727)	(427)
Fair Value	90,128	89,789
U.S. Treasury and Government agencies [Member]
Summary of amortized cost and fair values with gross unrealized gains and losses of available-for-sale securities
Amortized Cost	13,341	10,804
Gross Unrealized Gains	69	101
Gross Unrealized Losses	(52)
Fair Value	13,358	10,905
Mortgage-backed securities [Member]
Summary of amortized cost and fair values with gross unrealized gains and losses of available-for-sale securities
Amortized Cost	62,035	61,459
Gross Unrealized Gains	204	311
Gross Unrealized Losses	(636)	(427)
Fair Value	61,603	61,343
State and political subdivisions [Member]
Summary of amortized cost and fair values with gross unrealized gains and losses of available-for-sale securities
Amortized Cost	14,606	16,519
Gross Unrealized Gains	530	999
Gross Unrealized Losses	(39)
Fair Value	15,097	17,518
Equity securities [Member]
Summary of amortized cost and fair values with gross unrealized gains and losses of available-for-sale securities
Amortized Cost	70	23
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	$ 70	$ 23

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562

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X

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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No definition available.

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- Definition

Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563

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- Definition

Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563

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