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Fair Value of Financial Instruments and Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured On Nonrecurring Basis, Valuation Techniques (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
One-to-Four Family Residential Real Estate Loans [Member]
Impaired loans	$ 110	$ 171
Total (losses)/gains on impaired loans fair value disclosure	(29)	(73)
One-to-Four Family Residential Real Estate Loans [Member] | Level 1 [Member]
Impaired loans
One-to-Four Family Residential Real Estate Loans [Member] | Level 2 [Member]
Impaired loans
One-to-Four Family Residential Real Estate Loans [Member] | Level 3 [Member]
Impaired loans	110	171
Construction and Land Loan [Member]
Impaired loans	322	1,499
Total (losses)/gains on impaired loans fair value disclosure	(103)	(102)
Construction and Land Loan [Member] | Level 1 [Member]
Impaired loans
Construction and Land Loan [Member] | Level 2 [Member]
Impaired loans
Construction and Land Loan [Member] | Level 3 [Member]
Impaired loans	322	1,499
Commercial Real Estate Loans [Member]
Impaired loans	1,725	33
Total (losses)/gains on impaired loans fair value disclosure	377	12
Commercial Real Estate Loans [Member] | Level 1 [Member]
Impaired loans
Commercial Real Estate Loans [Member] | Level 2 [Member]
Impaired loans
Commercial Real Estate Loans [Member] | Level 3 [Member]
Impaired loans	1,725	33
Commercial Loans [Member]
Impaired loans	55	1,600
Total (losses)/gains on impaired loans fair value disclosure	(51)	(304)
Commercial Loans [Member] | Level 1 [Member]
Impaired loans
Commercial Loans [Member] | Level 2 [Member]
Impaired loans
Commercial Loans [Member] | Level 3 [Member]
Impaired loans	55	1,600
Agriculture Loans [Member]
Impaired loans	175	264
Total (losses)/gains on impaired loans fair value disclosure	11	65
Agriculture Loans [Member] | Level 1 [Member]
Impaired loans
Agriculture Loans [Member] | Level 2 [Member]
Impaired loans
Agriculture Loans [Member] | Level 3 [Member]
Impaired loans	$ 175	264
Real Estate Owned One-To-Four Family Residential Real Estate Loan [Member]
Impaired loans		325
Total (losses)/gains on impaired loans fair value disclosure		(68)
Real Estate Owned One-To-Four Family Residential Real Estate Loan [Member] | Level 1 [Member]
Impaired loans
Real Estate Owned One-To-Four Family Residential Real Estate Loan [Member] | Level 2 [Member]
Impaired loans
Real Estate Owned One-To-Four Family Residential Real Estate Loan [Member] | Level 3 [Member]
Impaired loans		325
Real Estate Owned Commercial Real Estate Loan [Member]
Impaired loans		85
Total (losses)/gains on impaired loans fair value disclosure		(50)
Real Estate Owned Commercial Real Estate Loan [Member] | Level 1 [Member]
Impaired loans
Real Estate Owned Commercial Real Estate Loan [Member] | Level 2 [Member]
Impaired loans
Real Estate Owned Commercial Real Estate Loan [Member] | Level 3 [Member]
Impaired loans		$ 85

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- Definition

Gain Loss On Impaired Loans Fair Value Disclosure

+ References

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as impaired loans disclosure.

+ References

No definition available.

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