Fair Value Measurements - Schedule of Significant Unobservable Inputs Used in Fair Value Measurement Process (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, Fair Value	$ 59,932	$ 59,932
Impaired loans with reserve, Fair Value	323,330	112,139
Mortgage servicing rights, Fair Value	$ 232,735	$ 231,977
Weighted Average [Member] \| Valuation Technique Appraised Collateral Values [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	10.00%	10.00%
Weighted Average [Member] \| Valuation Unobservable Inputs Discount For Time Since Appraisal [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	10.00%	10.00%
Weighted Average One [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	(10.00%)	(10.00%)
Weighted Average Two [Member] \| Valuation Unobservable Inputs Selling Costs [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	10.00%	10.00%
Weighted Average Three [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	(10.00%)	(10.00%)
Weighted Average Four [Member] \| Valuation Technique Discounted Cash Flows [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	10.00%	10.00%
Weighted Average Four [Member] \| Valuation Unobservable Inputs Discount for Evaluation [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	10.00%	10.00%
Weighted Average Five [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	(10.00%)	(10.00%)
Weighted Average Six [Member] \| Valuation Unobservable Inputs Selling Costs [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	10.00%	10.00%
Weighted Average Seven [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	(10.00%)	(10.00%)
Weighted Average Eight [Member] \| Valuation Technique Discounted Cash Flows [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	8.67%	8.67%
Weighted Average Eight [Member] \| Valuation Unobservable Inputs Loan Prepayment Speeds [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	8.67%	8.67%
Weighted Average Nine [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value measurement Weighted Average rate	(8.67%)	(8.67%)

SSB Bancorp, Inc. 10-Q/A