Investment Securities - Schedule of Securities Held to Maturity (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Amortized Cost	$ 36,960,598	$ 44,590,841
Unrealized Gains	201,514	605,174
Unrealized Losses	226,975	48,215
Estimated Fair Value	36,935,137	45,147,800
State and Municipal Securities [Member]
Amortized Cost	34,423,325	41,447,092
Unrealized Gains	173,948	527,632
Unrealized Losses	208,179	48,083
Estimated Fair Value	34,389,094	41,926,641
Residential Mortgage-Backed Securities [Member]
Amortized Cost	2,537,273	3,143,749
Unrealized Gains	27,566	77,542
Unrealized Losses	18,796	132
Estimated Fair Value	$ 2,546,043	$ 3,221,159

Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

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- Definition

Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

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- Definition

Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).

+ References

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

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