Disclosures about Fair Value of Assets (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of fair value measurements of assets recognized in balance sheets on recurring basis

			December 31, 2016
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
U.S. Government agencies	$	13,333,540	$	—	$	13,333,540	$	—
Mortgage-backed securities (Government-sponsored enterprises - residential)		44,413,177		—		44,413,177		—
Municipal bonds		42,414,723		—		42,414,723		—

			December 31, 2015
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
U.S. Government agencies	$	15,938,697	$	—	$	15,938,697	$	—
Mortgage-backed securities (Government-sponsored enterprises - residential)		23,178,395		—		23,178,395		—
Municipal bonds		48,356,240		—		48,356,240		—

Schedule of fair value measurement of assets measured at fair value on nonrecurring basis

			December 31, 2016
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Impaired loans (collateral dependent)	$	1,157,329	$	—	$	—	$	1,157,329
Mortgage servicing rights		552,827		—		—		552,827

			December 31, 2015
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Impaired loans (collateral dependent)	$	899,981	$	—	$	—	$	899,981

Schedule of quantitative information about unobservable inputs used in nonrecurring level 3 fair value measurements

	Fair Value at December 31, 2016		Valuation Technique	Unobservable Inputs	Range (Weighted Average)
Collateral-dependent impaired loans	$	1,157,329	Market comparable properties	Marketability discount	20% – 30% (25%)
Mortgage servicing rights	$	552,827	Discounted cash flow	Discount rate	9% - 13.5% (10.25%)
				PSA standard prepayment model rate	104 – 300 (153)

	Fair Value at December 31, 2015		Valuation Technique	Unobservable Inputs	Range (Weighted Average)
Collateral-dependent impaired loans	$	899,981	Market comparable properties	Marketability discount	20% – 30% (25%)

Schedule of estimated fair values of other financial instruments

			December 31, 2016
			Fair Value Measurements Using
	Carrying  Amount		Quoted Prices  in Active  Markets for  Identical Assets (Level 1)		Significant  Other  Observable  Inputs (Level 2)		Significant  Unobservable  Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	12,909,924	$	12,909,924	$	—	$	—
Interest-earning time deposits		750,000		750,000		—		—
Other investments		55,481		—		55,481		—
Loans held for sale		503,003		—		503,003		—
Loans, net of allowance for loan losses		184,448,003		—		—		183,941,877
Federal Home Loan Bank stock		363,800		—		363,800		—
Interest receivable		1,588,545		—		1,588,545		—
Financial liabilities
Deposits		258,677,960		—		178,491,424		81,241,011
Short-term borrowings		7,135,182		—		7,135,182
Advances from borrowers for taxes and insurance		1,102,204		—		1,102,204		—
Interest payable		106,755		—		106,755		—
Unrecognized financial instruments (net of contract amount)
Commitments to originate loans		—		—		—		—
Letters of credit		—		—		—		—
Lines of credit		—		—		—		—

			December 31, 2015
			Fair Value Measurements Using
	Carrying  Amount		Quoted Prices  in Active  Markets for  Identical Assets (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	4,103,432	$	4,103,432	$	—	$	—
Interest-earning time deposits		2,724,000		2,724,000		—		—
Other investments		62,223		—		62,223		—
Loans held for sale		539,000		—		539,000		—
Loans, net of allowance for loan losses		193,039,879		—		—		193,006,301
Federal Home Loan Bank stock		1,113,800		—		1,113,800		—
Interest receivable		1,715,676		—		1,715,676		—
Financial liabilities
Deposits		239,281,930		—		160,227,406		80,300,060
Short-term borrowings		15,131,710		—		6,631,710		8,500,000
Advances from borrowers for taxes and insurance		990,917		—		990,917		—
Interest payable		118,335		—		118,335		—
Unrecognized financial instruments (net of contract amount)
Commitments to originate loans		—		—		—		—
Letters of credit		—		—		—		—
Lines of credit		—		—		—		—