Allowance for Loan Losses - Performing and Non Performing Loans (Parenthetical) (Detail) (USD $)	Dec. 31, 2013		Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled	$ 144,488,615		$ 140,090,962
Residential First Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled	114,457,562	[1]	106,455,040	[2]
Residential Revolving and Junior Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled	24,045,395	[3]	26,982,512	[4]
Consumer Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled	5,985,658	[5]	6,653,410	[6]
Substandard | Residential First Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled	2,645,313		4,676,938
Substandard | Residential Revolving and Junior Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled	216,202		536,019
Substandard | Consumer Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled	9,094		75,409
Doubtful | Residential Revolving and Junior Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rating grade totaled			$ 847,581

[1] Residential First Mortgages which have been assigned a risk rating grade of Substandard totaled $2,645,313 as of December 31, 2013.

[2] Residential First Mortgages which have been assigned a risk rating grade of Substandard totaled $4,676,938 as of December 31, 2012.

[3] Residential Revolving and Junior Mortgages which have been assigned a risk rating grade of Substandard totaled $216,202 as of December 31, 2013.

[4] Residential Revolving and Junior Mortgages which have been assigned a risk rating grade of Substandard totaled $536,019 and Doubtful totaled $847,581 as of December 31, 2012.

[5] Consumer Loans which have been assigned a risk rating grade of Substandard totaled $9,094 as of December 31, 2013.

[6] Consumer Loans which have been assigned a risk rating grade of Substandard totaled $75,409 as of December 31, 2012.