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Loans and Allowance for Loan Losses - Schedule of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Total gross loans	$ 526,439		$ 495,247
Net deferred loan costs and loans in process	(27)		(109)
Allowance for loan losses	(6,279)	$ (6,266)	(5,765)	$ (5,889)	$ (5,835)	$ (5,459)
Loans, net	520,133		489,373
One-to-Four Family Residential Real Estate Loans [Member]
Total gross loans	141,801		136,895
Allowance for loan losses	(675)	(441)	(449)	(549)	(439)	(542)
Construction and Land Loan [Member]
Total gross loans	19,702		20,083
Allowance for loan losses	(68)	(255)	(168)	(115)	(109)	(181)
Commercial Real Estate Loans [Member]
Total gross loans	135,950		138,967
Allowance for loan losses	(1,432)	(1,758)	(1,686)	(1,447)	(1,466)	(1,540)
Commercial Loans [Member]
Total gross loans	101,150		74,289
Agriculture Loans [Member]
Total gross loans	100,958		96,632
Allowance for loan losses	(2,300)	(2,260)	(2,238)	(2,104)	(2,005)	(1,812)
Municipal Loans [Member]
Total gross loans	2,728		2,953
Allowance for loan losses	(6)	$ (7)	(7)	$ (7)	$ (7)	$ (8)
Consumer Loans [Member]
Total gross loans	$ 24,150		$ 25,428

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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