Note 8: Disclosures about Fair Value of Assets and Liabilities (Detail) - Fair Value of Financial Instruments (USD $)	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010
Financial assets:
Cash and cash equivalents, carrying amount	$ 38,641,763	$ 26,574,082	$ 46,943,374	$ 14,145,329
Cash and cash equivalents, fair value	38,641,763	26,574,082
Fair Value Measurement Using	38,641,763	26,574,082
Interest-bearing deposits		5,587,654
Interest-bearing deposits		5,587,654
Interest-bearing deposits	31,791,217	19,373,113
Held-to-maturity securities, carrying amount	189,278	218,571
Held-to-maturity securities, fair value	202,799	235,574
Fair Value Measurement Using	202,799	235,574
Federal Home Loan Bank stock, carrying amount	3,805,500	3,846,900
Federal Home Loan Bank stock, fair value	3,805,500	3,846,900
Fair Value Measurement Using	3,805,500	3,846,900
Mortgage loans held for sale, carrying amount	4,366,040	3,702,849
Mortgage loans held for sale, fair value	4,366,040	3,702,849
Fair Value Measurement Using	4,366,040	3,702,849
Loans, net, carrying amount	461,900,086	478,960,736
Loans, net, fair value	469,879,406	485,714,408
Fair Value Measurement Using	469,879,406	485,714,408
Interest receivable, carrying amount	2,068,467	2,139,320
Interest receivable, fair value	2,068,467	2,139,320
Fair Value Measurement Using	2,068,467	2,139,320
Financial liabilities:
Deposits, carrying amount	493,377,320	484,583,665
Deposits, fair value	494,667,557	485,803,947
Fair Value Measurement Using	494,667,557	485,803,947
Federal Home Loan Bank advances, carrying amount	68,050,000	68,050,000
Federal Home Loan Bank advances, fair value	72,123,139	70,815,606
Fair Value Measurement Using	72,123,139	70,815,606
Securities sold under agreements to repurchase, carrying amount	25,000,000	25,000,000
Securities sold under agreements to repurchase, fair value	25,117,215	25,025,344
Fair Value Measurement Using	25,117,215	25,025,344
Subordinated debentures, carrying amount	15,465,000	15,465,000
Subordinated debentures, fair value	15,465,000	15,465,000
Fair Value Measurement Using	15,465,000	15,465,000
Interest payable, carrying amount	417,952	518,881
Interest payable, fair value	417,952	518,881
Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and cash equivalents, fair value	38,641,763	26,574,082
Fair Value Measurement Using	38,641,763	26,574,082
Fair Value, Inputs, Level 2 [Member]
Financial assets:
Interest-bearing deposits		5,587,654
Held-to-maturity securities, fair value	202,799	235,574
Fair Value Measurement Using	202,799	235,574
Federal Home Loan Bank stock, fair value	3,805,500	3,846,900
Fair Value Measurement Using	3,805,500	3,846,900
Mortgage loans held for sale, fair value	4,366,040	3,702,849
Fair Value Measurement Using	4,366,040	3,702,849
Interest receivable, carrying amount	2,068,467	2,139,320
Interest receivable, fair value	2,068,467	2,139,320
Fair Value Measurement Using	2,068,467	2,139,320
Financial liabilities:
Deposits, fair value	494,667,557	485,803,947
Fair Value Measurement Using	494,667,557	485,803,947
Federal Home Loan Bank advances, fair value	72,123,139	70,815,606
Fair Value Measurement Using	72,123,139	70,815,606
Securities sold under agreements to repurchase, fair value	25,117,215	25,025,344
Fair Value Measurement Using	25,117,215	25,025,344
Fair Value Measurement Using	417,952	518,881
Fair Value, Inputs, Level 3 [Member]
Financial assets:
Loans, net, fair value	469,879,406	485,714,408
Fair Value Measurement Using	469,879,406	485,714,408
Financial liabilities:
Subordinated debentures, fair value	15,465,000	15,465,000
Fair Value Measurement Using	$ 15,465,000	$ 15,465,000