Loans and Allowance for Loan Losses (Details 4) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	$ 3,359,915	$ 3,388,815	$ 3,432,844	$ 3,106,884	$ 3,106,884
Charge-offs	(24,980)	(53,778)	(277,827)	(141,382)	(172,288)
Recoveries	26,712	21,014	36,630	143,313	148,248
Provisions	25,000	80,000	195,000	280,000	350,000
Ending Balance	3,386,647	3,388,815	3,386,647	3,388,815	3,432,844
Individually evaluated for impairment	2,193,551		2,193,551		1,998,658
Collectively evaluated for impairment	1,193,096		1,193,096		1,434,186
Individually evaluated for impairment	7,440,997		7,440,997		11,498,279
Collectively evaluated for impairment	217,170,085		217,170,085		205,630,345
Commercial
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	1,463,641	1,551,557	1,478,450	1,586,510	1,586,510
Charge-offs		(42,883)	(235,016)	(60,035)	(60,042)
Recoveries	20,070	2,665	23,003	107,633	109,569
Provisions	(63,485)	(171,358)	153,789	(294,127)	(157,587)
Ending Balance	1,420,226	1,339,981	1,420,226	1,339,981	1,478,450
Individually evaluated for impairment	1,180,169		1,180,169		1,251,462
Collectively evaluated for impairment	240,057		240,057		226,988
Individually evaluated for impairment	1,659,845		1,659,845		1,392,037
Collectively evaluated for impairment	56,419,355		56,419,355		53,272,249
Commercial Real Estate
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	699,761	508,403	584,646	420,367	420,367
Charge-offs				(43,734)	(43,734)
Recoveries	5,849	3,000	11,849	10,229	13,228
Provisions	251,063	(192,853)	360,178	(68,312)	(194,785)
Ending Balance	956,673	318,550	956,673	318,550	584,646
Individually evaluated for impairment	520,246		520,246		169,243
Collectively evaluated for impairment	436,427		436,427		415,403
Individually evaluated for impairment	4,560,870		4,560,870		8,866,004
Collectively evaluated for impairment	103,017,870		103,017,870		101,985,943
Consumer Real Estate
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	846,332	671,337	890,728	450,338	450,338
Charge-offs				(26,488)	(56,487)
Recoveries				10,000	10,000
Provisions	(214,286)	(99,832)	(258,682)	137,655	486,877
Ending Balance	632,046	571,505	632,046	571,505	890,728
Individually evaluated for impairment	448,060		448,060		528,510
Collectively evaluated for impairment	183,986		183,986		362,218
Individually evaluated for impairment	1,175,206		1,175,206		1,190,795
Collectively evaluated for impairment	53,403,098		53,403,098		45,512,659
Consumer Other
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	86,721	91,895	102,953	91,402	91,402
Charge-offs	(24,980)	(10,895)	(42,811)	(11,125)	(12,025)
Recoveries	793	15,349	1,778	15,451	15,451
Provisions	20,805	(15,730)	21,419	(15,109)	8,125
Ending Balance	83,339	80,619	83,339	80,619	102,953
Individually evaluated for impairment	45,076		45,076		49,443
Collectively evaluated for impairment	38,263		38,263		53,510
Individually evaluated for impairment	45,076		45,076		49,443
Collectively evaluated for impairment	4,329,762		4,329,762		4,859,494
Unallocated
Activity in the allowance for loan losses by portfolio segment
Beginning Balance	263,460	518,387	376,067	558,267	558,267
Charge-offs
Recoveries
Provisions	30,903	559,773	(81,704)	519,893	(182,200)
Ending Balance	294,363	1,078,160	294,363	1,078,160	376,067
Individually evaluated for impairment
Collectively evaluated for impairment	294,363		294,363		376,067
Individually evaluated for impairment
Collectively evaluated for impairment