Loans and Allowance for Loan Losses - Summary of Loans Due after One Year (Details) - Commercial Financial, Agricultural And Construction [Member]	Mar. 31, 2018 USD ($)
Loans With Predetermined Rates	$ 70,959,737
Loans With Floating Rates	3,574,484
Total	$ 74,534,221

Amount of loan with variable or adjustable rate of interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant