Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Weighted Average Number of Shares Outstanding, Basic, Total	1,671,789	1,658,384
Weighted Average Number Diluted Shares Outstanding Adjustment, Total	0	0
Retained Earnings [Member] \| Accounting Standards Update 2016-01 [Member]
Reclassification Due to Adoption of ASU	$ (10,416)
AOCI Attributable to Parent [Member] \| Accounting Standards Update 2016-01 [Member]
Reclassification Due to Adoption of ASU	$ 10,416
First Community Bankers Insurance Co., LLC [Member]
Percentage of Ownership	100.00%

The percentage of ownership owned by the company.

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- Definition

The amount of reclassification from retained earning due to adoption of ASU.

+ References

No definition available.

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- Definition

The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109260490&loc=d3e1448-109256

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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