Loans and Allowance for Loan Losses (Details 4) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	$ 3,418,953	$ 3,234,514	$ 3,432,844	$ 3,106,884	$ 3,106,884
Charge-offs	(158,894)	(70,222)	(252,847)	(87,604)	(172,288)
Recoveries	4,856	97,287	9,918	122,299	148,248
Provisions	95,000	80,000	170,000	200,000	350,000
Ending Balance	3,359,915	3,341,579	3,359,915	3,341,579	3,432,844
Individually evaluated for impairment	1,990,194		1,990,194		1,998,658
Collectively evaluated for impairment	1,369,721		1,369,721		1,434,186
Individually evaluated for impairment	6,724,207		6,724,207		11,498,279
Collectively evaluated for impairment	207,613,895		207,613,895		205,630,345
Commercial
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	1,500,055	1,693,265	1,478,450	1,586,510	1,586,510
Charge-offs	(141,063)		(235,016)	(17,152)	(60,042)
Recoveries	1,445	93,588	2,934	104,968	109,569
Provisions	103,204	(235,296)	217,273	(122,769)	(157,587)
Ending Balance	1,463,641	1,551,557	1,463,641	1,551,557	1,478,450
Individually evaluated for impairment	1,221,009		1,221,009		1,251,462
Collectively evaluated for impairment	242,632		242,632		226,988
Individually evaluated for impairment	1,664,534		1,664,534		1,392,037
Collectively evaluated for impairment	51,269,459		51,269,459		53,272,249
Commercial Real Estate
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	654,283	525,030	584,646	420,367	420,367
Charge-offs		(43,734)		(43,734)	(43,734)
Recoveries	3,000	3,597	6,000	7,229	13,228
Provisions	42,478	23,510	109,115	124,541	(194,785)
Ending Balance	699,761	508,403	699,761	508,403	584,646
Individually evaluated for impairment	267,836		267,836		169,243
Collectively evaluated for impairment	431,925		431,925		415,403
Individually evaluated for impairment	3,803,214		3,803,214		8,866,004
Collectively evaluated for impairment	100,436,505		100,436,505		101,985,943
Consumer Real Estate
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	841,411	677,329	890,728	450,338	450,338
Charge-offs		(26,488)		(26,488)	(56,487)
Recoveries				10,000	10,000
Provisions	4,921	20,496	(44,396)	237,487	486,877
Ending Balance	846,332	671,337	846,332	671,337	890,728
Individually evaluated for impairment	454,111		454,111		528,510
Collectively evaluated for impairment	392,221		392,221		362,218
Individually evaluated for impairment	1,207,220		1,207,220		1,190,795
Collectively evaluated for impairment	51,663,145		51,663,145		45,512,659
Consumer Other
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	82,330	95,920	102,953	91,402	91,402
Charge-offs	(17,831)		(17,831)	(230)	(12,025)
Recoveries	411	102	984	102	15,451
Provisions	21,811	(4,127)	615	621	8,125
Ending Balance	86,721	91,895	86,721	91,895	102,953
Individually evaluated for impairment	47,238		47,238		49,443
Collectively evaluated for impairment	39,483		39,483		53,510
Individually evaluated for impairment	49,239		49,239		49,443
Collectively evaluated for impairment	4,244,786		4,244,786		4,859,494
Unallocated
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	340,874	242,970	376,067	558,267	558,267
Charge-offs
Recoveries
Provisions	(77,414)	275,417	(112,607)	(39,880)	(182,200)
Ending Balance	263,460	518,387	263,460	518,387	376,067
Individually evaluated for impairment
Collectively evaluated for impairment	263,460		263,460		376,067
Individually evaluated for impairment
Collectively evaluated for impairment