Fair Value Measurements - Schedule of Carrying and Estimated Fair Value of Assets and Liabilities Recorded at Fair Value (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Cash and cash equivalents	$ 49,015,175	$ 35,498,792	$ 48,987,447	$ 34,138,421
Certificates of deposit in other banks	2,732,000	2,732,000
Investment securities available for sale	62,962,079	58,313,577
Investment securities held to maturity	35,674,367	37,010,327
Federal Home Loan Bank stock	1,019,900	1,820,300
Loans, net	364,345,000	366,211,000
Bank owned life insurance	6,812,589	6,779,242
Deposits	457,973,000	456,245,000
Federal Home Loan Bank advances	13,747,000	31,591,000
Level 1 [Member]
Cash and cash equivalents	49,015,000	35,499,000
Certificates of deposit in other banks	2,732,000	2,732,000
Investment securities available for sale	3,966,000	955,000
Investment securities held to maturity	0	0
Federal Home Loan Bank stock	0	0
Loans, net	0	0
Bank owned life insurance	0	0
Deposits	0	0
Federal Home Loan Bank advances	0	0
Level 2 [Member]
Cash and cash equivalents	0	0
Certificates of deposit in other banks	0	0
Investment securities available for sale	58,996,000	57,359,000
Investment securities held to maturity	35,674,000	37,010,000
Federal Home Loan Bank stock	1,020,000	1,820,000
Loans, net	360,840,000	362,373,000
Bank owned life insurance	6,813,000	6,779,000
Deposits	457,973,000	456,245,000
Federal Home Loan Bank advances	13,747,000	31,591,000
Level 3 [Member]
Cash and cash equivalents	0	0
Certificates of deposit in other banks	0	0
Investment securities available for sale	0	0
Investment securities held to maturity	0	0
Federal Home Loan Bank stock	0	0
Loans, net	3,505,000	3,838,000
Bank owned life insurance	0	0
Deposits	0	0
Federal Home Loan Bank advances	0	0
Carrying Amount [Member]
Cash and cash equivalents	49,015,000	35,499,000
Certificates of deposit in other banks	2,732,000	2,732,000
Investment securities available for sale	62,962,000	58,314,000
Investment securities held to maturity	35,185,000	36,827,000
Federal Home Loan Bank stock	1,020,000	1,820,000
Loans, net	374,327,000	373,321,000
Bank owned life insurance	6,813,000	6,779,000
Deposits	488,619,000	455,640,000
Federal Home Loan Bank advances	$ 13,700,000	$ 31,629,000

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

No definition available.

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- Definition

The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
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A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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- Definition

Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions.

+ References

No definition available.

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- Definition

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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