5. Loans, Allowance for Loan Losses and Credit Quality (Details 2) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Allowance for loan losses, Beginning balance	$ 4,312,080	$ 3,886,502	$ 3,886,502
Charge-offs	(35,161)	(199,052)	(695,582)
Recoveries	10,215	15,036	121,160
Provisions	206,250	250,003	1,000,000
Allowance for loan losses, Ending balance	4,493,384	3,952,489	4,312,080
Allowance for loan losses evaluated for impairment, Individually	268,200	383,500	174,000
Allowance for loan losses evaluated for impairment, Collectively	4,225,184	3,568,989	4,138,080
Total Allowance for loan losses	4,493,384	3,952,489	4,312,080
Loans evaluated for impairment, Individually	4,208,096	7,225,233	4,149,346
Loans evaluated for impairment, Collectively	413,261,039	389,020,613	412,226,102
Total Loans	417,469,135	396,245,846	416,375,448
Commercial Portfolio Segment [Member]
Allowance for loan losses, Beginning balance	428,381	342,314	342,314
Charge-offs	(17,935)	(9,834)	(159,309)
Recoveries	200	1,252	29,769
Provisions	25,743	54,844	215,607
Allowance for loan losses, Ending balance	436,389	388,576	428,381
Allowance for loan losses evaluated for impairment, Individually	0	56,500	0
Allowance for loan losses evaluated for impairment, Collectively	436,389	332,076	428,381
Total Allowance for loan losses	436,389	388,576	428,381
Loans evaluated for impairment, Individually	323,486	981,463	435,165
Loans evaluated for impairment, Collectively	50,721,004	45,474,372	48,848,783
Total Loans	51,044,490	46,455,835	49,283,948
Commercial real estate
Allowance for loan losses, Beginning balance	1,536,440	1,385,939	1,385,939
Charge-offs	0	(46,799)	(57,923)
Recoveries	0	756	51,863
Provisions	226,597	49,472	156,561
Allowance for loan losses, Ending balance	1,763,037	1,389,368	1,536,440
Allowance for loan losses evaluated for impairment, Individually	104,500	36,200	0
Allowance for loan losses evaluated for impairment, Collectively	1,658,537	1,353,168	1,536,440
Total Allowance for loan losses	1,763,037	1,389,368	1,536,440
Loans evaluated for impairment, Individually	2,054,265	3,623,305	1,762,615
Loans evaluated for impairment, Collectively	136,730,207	127,297,113	138,044,902
Total Loans	138,784,472	130,920,418	139,807,517
Residential real estate 1st lien
Allowance for loan losses, Beginning balance	1,563,576	1,578,493	1,578,493
Charge-offs	0	(58,474)	(246,237)
Recoveries	5,626	1,457	5,538
Provisions	(58,063)	73,977	225,782
Allowance for loan losses, Ending balance	1,511,139	1,595,453	1,563,576
Allowance for loan losses evaluated for impairment, Individually	116,300	255,300	134,800
Allowance for loan losses evaluated for impairment, Collectively	1,394,839	1,340,153	1,428,776
Total Allowance for loan losses	1,511,139	1,595,453	1,563,576
Loans evaluated for impairment, Individually	1,490,005	2,314,559	1,641,960
Loans evaluated for impairment, Collectively	170,541,278	160,207,904	167,970,849
Total Loans	172,031,283	162,522,463	169,612,809
Residential Real Estate Jr Lien
Allowance for loan losses, Beginning balance	332,556	331,684	331,684
Charge-offs	0	(60,287)	(135,622)
Recoveries	60	1,356	1,538
Provisions	53,454	45,322	134,956
Allowance for loan losses, Ending balance	386,070	318,075	332,556
Allowance for loan losses evaluated for impairment, Individually	47,400	35,500	39,200
Allowance for loan losses evaluated for impairment, Collectively	338,670	282,575	293,356
Total Allowance for loan losses	386,070	318,075	332,556
Loans evaluated for impairment, Individually	340,340	305,906	309,606
Loans evaluated for impairment, Collectively	45,572,506	45,040,235	46,719,417
Total Loans	45,912,846	45,346,141	47,029,023
Consumer Portfolio Segment [Member]
Allowance for loan losses, Beginning balance	138,699	124,779	124,779
Charge-offs	(17,226)	(23,658)	(96,491)
Recoveries	4,329	10,215	32,452
Provisions	(6,770)	12,686	77,959
Allowance for loan losses, Ending balance	119,032	124,022	138,699
Allowance for loan losses evaluated for impairment, Individually	0	0	0
Allowance for loan losses evaluated for impairment, Collectively	119,032	124,022	138,699
Total Allowance for loan losses	119,032	124,022	138,699
Loans evaluated for impairment, Individually	0	0	0
Loans evaluated for impairment, Collectively	9,696,044	11,000,989	10,642,151
Total Loans	9,696,044	11,000,989	10,642,151
Unallocated
Allowance for loan losses, Beginning balance	312,428	123,293	123,293
Charge-offs	0	0	0
Recoveries	0	0	0
Provisions	(34,711)	13,702	189,135
Allowance for loan losses, Ending balance	277,717	136,995	312,428
Allowance for loan losses evaluated for impairment, Individually	0	0	0
Allowance for loan losses evaluated for impairment, Collectively	277,717	136,995	312,428
Total Allowance for loan losses	$ 277,717	$ 136,995	$ 312,428