Commitments, Contingent Liabilities, and Financial Instruments with Off-Balance Sheet Risk - Contractual or Notional Amounts of Financial Instruments (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Notes to Financial Statements
Commitments to extend credit	$ 15,716,172	$ 16,733,733
Standby letters of credit and financial guarantees	$ 10,000	$ 45,000