Investment Securities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Available for sale
Total investment securities available for sale, Amortized Cost	$ 68,181	$ 65,244
Total investment securities available for sale, Gross Unrealized Gains	185	163
Total investment securities available for sale, Gross Unrealized Losses	763	927
Available-for-sale securities, investment securities, Fair Value	67,603	64,480
US government agencies [Member]
Available for sale
Total investment securities available for sale, Amortized Cost	8,749	6,271
Total investment securities available for sale, Gross Unrealized Gains	1	1
Total investment securities available for sale, Gross Unrealized Losses	97	113
Available-for-sale securities, investment securities, Fair Value	8,653	6,159
SBA securities [Member]
Available for sale
Total investment securities available for sale, Amortized Cost	4,087	1,453
Total investment securities available for sale, Gross Unrealized Gains
Total investment securities available for sale, Gross Unrealized Losses	24	16
Available-for-sale securities, investment securities, Fair Value	4,063	1,437
State and political subdivisions [Member]
Available for sale
Total investment securities available for sale, Amortized Cost	11,242	20,625
Total investment securities available for sale, Gross Unrealized Gains	179	141
Total investment securities available for sale, Gross Unrealized Losses	25	292
Available-for-sale securities, investment securities, Fair Value	11,396	20,474
Mortgage-backed securities [Member]
Available for sale
Total investment securities available for sale, Amortized Cost	44,103	36,895
Total investment securities available for sale, Gross Unrealized Gains	5	21
Total investment securities available for sale, Gross Unrealized Losses	617	506
Available-for-sale securities, investment securities, Fair Value	43,491	36,410
Mortgage-backed securities [Member] \| FHLMC [Member]
Available for sale
Total investment securities available for sale, Amortized Cost	9,102	10,922
Total investment securities available for sale, Gross Unrealized Gains
Total investment securities available for sale, Gross Unrealized Losses	149	185
Available-for-sale securities, investment securities, Fair Value	8,953	10,737
Mortgage-backed securities [Member] \| FNMA [Member]
Available for sale
Total investment securities available for sale, Amortized Cost	29,383	24,827
Total investment securities available for sale, Gross Unrealized Gains	3	19
Total investment securities available for sale, Gross Unrealized Losses	386	277
Available-for-sale securities, investment securities, Fair Value	29,000	24,569
Mortgage-backed securities [Member] \| GNMA [Member]
Available for sale
Total investment securities available for sale, Amortized Cost	5,618	1,146
Total investment securities available for sale, Gross Unrealized Gains	2	2
Total investment securities available for sale, Gross Unrealized Losses	82	44
Available-for-sale securities, investment securities, Fair Value	$ 5,538	$ 1,104

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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)
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Amount of debt 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)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 320
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-Section 45
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-Topic 320
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-Section 50
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-Name Accounting Standards Codification
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-Paragraph 2
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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=82897076&loc=d3e27161-111563

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