Loans and Allowance for Loan Losses - Summary of Loans Due after One Year (Details) - Commercial Financial, Agricultural And Construction [Member]	Jun. 30, 2018 USD ($)
Loans With Predetermined Rates	$ 72,442,500
Loans With Floating Rates	3,527,914
Total	$ 75,970,414

Amount of loan with variable or adjustable rate of interest.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant