Loan Servicing - Schedule of Servicing Assets at Fair Value (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Transfers and Servicing [Abstract]
Mortgage loan portfolios serviced for others, value	$ 330,818,219	$ 244,629,625
Servicing fees, net	713,881	608,513	522,491
Servicing Asset at Fair Value, Amount [Roll Forward]
Mortgage servicing assets, beginning of year	1,871,244	2,144,139
Capitalized	1,100,835	286,499
Change in fair value	(447,403)	(559,394)	(431,350)
Mortgage servicing assets, end of year	2,524,676	1,871,244	2,144,139
Custodial escrow balances maintained in connection with the loan servicing	$ 318,649	$ 215,504