Fair Value Measurements - Schedule of Balances of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Securities available for sale:
Securities available-for-sale	$ 38,521,996	$ 36,700,520
Mortgage servicing rights	579,145
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	2,819,910	2,844,808
US Government Agencies
Securities available for sale:
Securities available-for-sale	9,308,069	9,463,815
State and Municipal Obligations
Securities available for sale:
Securities available-for-sale	26,556,888	23,849,528
Certificates of Deposit
Securities available for sale:
Securities available-for-sale	1,745,039	1,987,177
Auction Rate Security
Securities available for sale:
Securities available-for-sale	912,000	1,400,000
Cash and Cash Equivalents
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	2,582	(5,539)
Fixed Income Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	1,070,272	1,091,176
Equity Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	1,747,056	1,759,171
Fair Value, Inputs, Level 1
Securities available for sale:
Securities available-for-sale
Mortgage servicing rights
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	2,819,910	2,844,808
Fair Value, Inputs, Level 1 | US Government Agencies
Securities available for sale:
Securities available-for-sale
Fair Value, Inputs, Level 1 | State and Municipal Obligations
Securities available for sale:
Securities available-for-sale
Fair Value, Inputs, Level 1 | Certificates of Deposit
Securities available for sale:
Securities available-for-sale
Fair Value, Inputs, Level 1 | Auction Rate Security
Securities available for sale:
Securities available-for-sale
Fair Value, Inputs, Level 1 | Cash and Cash Equivalents
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	2,582	(5,539)
Fair Value, Inputs, Level 1 | Fixed Income Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	1,070,272	1,091,176
Fair Value, Inputs, Level 1 | Equity Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets	1,747,056	1,759,171
Fair Value, Inputs, Level 2
Securities available for sale:
Securities available-for-sale	37,609,996	35,300,520
Mortgage servicing rights
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets
Fair Value, Inputs, Level 2 | US Government Agencies
Securities available for sale:
Securities available-for-sale	9,308,069	9,463,815
Fair Value, Inputs, Level 2 | State and Municipal Obligations
Securities available for sale:
Securities available-for-sale	26,556,888	23,849,528
Fair Value, Inputs, Level 2 | Certificates of Deposit
Securities available for sale:
Securities available-for-sale	1,745,039	1,987,177
Fair Value, Inputs, Level 2 | Cash and Cash Equivalents
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets
Fair Value, Inputs, Level 2 | Fixed Income Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets
Fair Value, Inputs, Level 2 | Equity Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets
Fair Value, Inputs, Level 3
Securities available for sale:
Securities available-for-sale	912,000	1,400,000
Mortgage servicing rights	579,145
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets
Fair Value, Inputs, Level 3 | US Government Agencies
Securities available for sale:
Securities available-for-sale
Fair Value, Inputs, Level 3 | State and Municipal Obligations
Securities available for sale:
Securities available-for-sale
Fair Value, Inputs, Level 3 | Certificates of Deposit
Securities available for sale:
Securities available-for-sale
Fair Value, Inputs, Level 3 | Auction Rate Security
Securities available for sale:
Securities available-for-sale	912,000	1,400,000
Fair Value, Inputs, Level 3 | Cash and Cash Equivalents
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets
Fair Value, Inputs, Level 3 | Fixed Income Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets
Fair Value, Inputs, Level 3 | Equity Funds
Defined benefit plan assets:
Defined Benefit Plan Fair Value Of Plan Assets