5. Loans, Allowance for Loan Losses and Credit Quality (Details 3) (USD $)	6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Recorded Investment allowance recorded	$ 3,089,085	$ 6,092,085	$ 4,149,346
Unpaid Principal Balance allowance recorded	3,520,023	6,853,912	4,912,247
Related Allowance recorded	241,800	180,400	174,000
Average Recorded Investment Allowance recorded	3,648,593	6,658,660	5,825,949
Average Recorded Investment (2) Allowance recorded	3,815,510	6,929,229
Commercial and industrial
Recorded Investment With no related allowance recorded	305,425	985,350	435,165
Recorded Investment With an allowance recorded	0	0	0
Recorded Investment allowance recorded	305,425	985,350	435,165
Unpaid Principal Balance With no related allowance recorded	348,569	1,098,373	473,664
Unpaid Principal Balance With an allowance recorded	0	0	0
Unpaid Principal Balance allowance recorded	348,569	1,098,373	473,664
Related Allowance With no ralated allowance recorded	0	0	0
Related Allowance With an allowance recorded	0	0	0
Related Allowance recorded	0	0	0
Average Recorded Investment With no related allowance recorded	314,456	711,297	536,973
Average Recorded Investment With an allowance recorded	0	272,109	232,743
Average Recorded Investment Allowance recorded	314,456	983,406	769,716
Average Recorded Investment (2) With no related allowance recorded	354,692	601,073
Average Recorded Investment (2) With an allowance recorded	0	387,905
Average Recorded Investment (2) Allowance recorded	354,692	988,978
Commercial Real Estate
Recorded Investment With no related allowance recorded	971,245	2,307,560	1,762,615
Recorded Investment With an allowance recorded	96,915	1,151,655	0
Recorded Investment allowance recorded	1,068,160	3,459,215	1,762,615
Unpaid Principal Balance With no related allowance recorded	1,030,645	2,658,965	2,123,371
Unpaid Principal Balance With an allowance recorded	96,915	1,167,055	0
Unpaid Principal Balance allowance recorded	1,127,560	3,826,020	2,123,371
Related Allowance With no ralated allowance recorded	0	0	0
Related Allowance With an allowance recorded	29,000	15,100	0
Related Allowance recorded	29,000	15,100	0
Average Recorded Investment With no related allowance recorded	1,360,330	2,148,538	2,019,449
Average Recorded Investment With an allowance recorded	200,883	1,392,722	920,842
Average Recorded Investment Allowance recorded	1,561,213	3,541,260	2,940,291
Average Recorded Investment (2) With no related allowance recorded	1,494,425	2,112,726
Average Recorded Investment (2) With an allowance recorded	133,922	1,471,201
Average Recorded Investment (2) Allowance recorded	1,628,347	3,583,927
Residential real estate - 1st lien
Recorded Investment With no related allowance recorded	897,190	701,424	1,024,598
Recorded Investment With an allowance recorded	469,495	644,300	617,362
Recorded Investment allowance recorded	1,366,685	1,345,724	1,641,960
Unpaid Principal Balance With no related allowance recorded	1,122,551	924,758	1,250,224
Unpaid Principal Balance With an allowance recorded	539,218	683,961	669,288
Unpaid Principal Balance allowance recorded	1,661,769	1,608,719	1,919,512
Related Allowance With no ralated allowance recorded	0	0	0
Related Allowance With an allowance recorded	121,700	144,300	134,800
Related Allowance recorded	121,700	144,300	134,800
Average Recorded Investment With no related allowance recorded	953,984	771,255	893,629
Average Recorded Investment With an allowance recorded	474,361	1,058,887	892,339
Average Recorded Investment Allowance recorded	1,428,345	1,830,142	1,785,968
Average Recorded Investment (2) With no related allowance recorded	977,522	847,776
Average Recorded Investment (2) With an allowance recorded	522,028	1,161,093
Average Recorded Investment (2) Allowance recorded	1,499,550	2,008,869
Residential real estate - Jr lien
Recorded Investment With no related allowance recorded	24,591	31,532	15,694
Recorded Investment With an allowance recorded	324,224	270,264	293,912
Recorded Investment allowance recorded	348,815	301,796	309,606
Unpaid Principal Balance With no related allowance recorded	32,254	36,024	76,680
Unpaid Principal Balance With an allowance recorded	349,871	284,776	319,020
Unpaid Principal Balance allowance recorded	382,125	320,800	395,700
Related Allowance With no ralated allowance recorded	0	0	0
Related Allowance With an allowance recorded	91,100	21,000	39,200
Related Allowance recorded	91,100	21,000	39,200
Average Recorded Investment With no related allowance recorded	20,143	15,766	34,602
Average Recorded Investment With an allowance recorded	324,436	288,086	295,372
Average Recorded Investment Allowance recorded	344,579	303,852	329,974
Average Recorded Investment (2) With no related allowance recorded	18,660	52,439
Average Recorded Investment (2) With an allowance recorded	314,261	295,016
Average Recorded Investment (2) Allowance recorded	$ 332,921	$ 347,455