5. Loans, Allowance for Loan Losses and Credit Quality (Details 4) (USD $)	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Group A	$ 412,875,045	$ 402,502,311	$ 385,438,859
Group B	3,529,705	5,456,205	5,794,881
Group C	8,388,461	8,416,932	13,963,919
Total Loans	424,793,211	416,375,448	405,197,659
Commercial and industrial
Group A	55,985,055	47,689,238	50,347,984
Group B	567,569	593,838	400,125
Group C	1,056,216	1,000,872	1,948,702
Total Loans	57,608,840	49,283,948	52,696,811
Commercial Real Estate
Group A	131,939,691	131,643,756	119,388,434
Group B	2,321,844	4,139,367	4,660,012
Group C	4,402,677	4,024,394	7,191,103
Total Loans	138,664,212	139,807,517	131,239,549
Residential real estate - 1st lien
Group A	171,245,755	166,374,493	159,049,480
Group B	178,847	404,752	412,798
Group C	2,458,556	2,833,564	4,174,838
Total Loans	173,883,158	169,612,809	163,637,116
Residential real estate - Jr lien
Group A	44,215,183	46,162,420	45,302,653
Group B	461,445	318,248	321,946
Group C	469,047	548,355	628,686
Total Loans	45,145,675	47,029,023	46,253,285
Consumer
Group A	9,489,361	10,632,404	11,350,308
Group B	0	0	0
Group C	1,965	9,747	20,590
Total Loans	$ 9,491,326	$ 10,642,151	$ 11,370,898