5. Loans, Allowance for Loan Losses and Credit Quality (Details 1) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
30-89 Days	$ 5,801,420	$ 6,734,891	$ 6,309,570
90 Days or more	2,523,714	2,168,099	5,695,570
Total Past Due	8,325,134	8,902,990	12,005,140
Current	409,144,001	407,472,458	384,240,706
Total Loans	417,469,135	416,375,448	396,245,846
Non-Accrual Loans	4,919,417	4,755,452	7,663,385
Over 90 Days and Accruing	404,710	378,060	1,221,954
Commercial and industrial
30-89 Days	1,487,049	782,937	1,627,845
90 Days or more	303,881	377,145	487,359
Total Past Due	1,790,930	1,160,082	2,115,204
Current	49,253,560	48,123,866	44,340,631
Total Loans	51,044,490	49,283,948	46,455,835
Non-Accrual Loans	558,874	596,777	1,047,690
Over 90 Days and Accruing	0	0	65,350
Commercial Real Estate
30-89 Days	923,865	785,890	868,141
90 Days or more	1,396,401	888,179	2,794,504
Total Past Due	2,320,266	1,674,069	3,662,645
Current	136,464,206	138,133,448	127,257,773
Total Loans	138,784,472	139,807,517	130,920,418
Non-Accrual Loans	2,222,566	1,892,195	3,666,742
Over 90 Days and Accruing	186,792	53,937	193,044
Residential real estate - 1st lien
30-89 Days	3,085,496	4,654,077	3,048,858
90 Days or more	719,177	844,803	2,369,143
Total Past Due	3,804,673	5,498,880	5,418,001
Current	168,226,610	164,113,929	157,104,462
Total Loans	172,031,283	169,612,809	162,522,463
Non-Accrual Loans	1,769,150	1,928,097	2,604,285
Over 90 Days and Accruing	164,472	281,845	928,443
Residential real estate - Jr lien
30-89 Days	211,168	379,363	615,913
90 Days or more	104,255	57,128	44,564
Total Past Due	315,423	436,491	660,477
Current	45,597,423	46,592,532	44,685,664
Total Loans	45,912,846	47,029,023	45,346,141
Non-Accrual Loans	368,827	338,383	344,668
Over 90 Days and Accruing	53,446	41,434	35,117
Consumer
30-89 Days	93,842	132,624	148,813
90 Days or more	0	844	0
Total Past Due	93,842	133,468	148,813
Current	9,602,202	10,508,683	10,852,176
Total Loans	9,696,044	10,642,151	11,000,989
Non-Accrual Loans	0	0	0
Over 90 Days and Accruing	$ 0	$ 844	$ 0