Loans and Allowances for Loan Losses (Details 4) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	$ 11,753,773	$ 11,878,857
Unpaid principal balance of impaired loans	13,153,725	13,151,004
Valuation allowance related to impaired loans	1,718,854	1,721,786
Average investment in impaired loans	11,801,324	12,660,405
Interest income recognized on impaired loans	71,957	617,455
Without a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	4,314,069	4,051,895
With a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	7,439,704	7,826,962
Commercial
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	1,866,051	1,870,266
Unpaid principal balance of impaired loans	1,905,898	1,910,113
Valuation allowance related to impaired loans	603,413	454,620
Average investment in impaired loans	1,867,990	2,254,699
Interest income recognized on impaired loans	23,959	114,732
Commercial | Without a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	34,885	34,885
Commercial | With a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	1,831,166	1,835,381
Residential 1-4 Family
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	6,261,583	6,327,833
Unpaid principal balance of impaired loans	6,683,915	6,719,860
Valuation allowance related to impaired loans	702,220	739,943
Average investment in impaired loans	6,271,502	5,750,530
Interest income recognized on impaired loans	27,043	333,710
Residential 1-4 Family | Without a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	2,282,712	2,112,736
Residential 1-4 Family | With a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	3,978,871	4,215,097
Commercial Real Estate and Multi-Family
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	1,409,572	1,421,168
Unpaid principal balance of impaired loans	1,409,572	1,421,168
Valuation allowance related to impaired loans	108,093	109,659
Average investment in impaired loans	1,415,754	2,117,175
Interest income recognized on impaired loans	16,703	104,273
Commercial Real Estate and Multi-Family | Without a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	1,052,738	1,061,923
Commercial Real Estate and Multi-Family | With a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	356,834	359,245
Construction and Land
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	1,911,210	1,978,395
Unpaid principal balance of impaired loans	2,848,313	2,817,998
Valuation allowance related to impaired loans	258,608	361,470
Average investment in impaired loans	1,960,471	2,031,800
Interest income recognized on impaired loans	1,467	29,077
Construction and Land | Without a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	799,101	768,424
Construction and Land | With a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	1,112,109	1,209,971
Consumer and Other
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	305,357	281,195
Unpaid principal balance of impaired loans	306,027	281,865
Valuation allowance related to impaired loans	46,520	56,094
Average investment in impaired loans	285,607	506,201
Interest income recognized on impaired loans	2,785	35,663
Consumer and Other | Without a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	144,633	73,927
Consumer and Other | With a valuation allowance
Loans individually evaluated for impairment by class of loans
Recorded investment in impaired loans	$ 160,724	$ 207,268