Segment Reporting (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 Segment	Mar. 31, 2012	Dec. 31, 2012
Segment Reporting [Abstract]
Number of operating segments	3
Description of operating segments	The Company's reportable segments are strategic business units that offer different products and services. They are managed separately because each segment appeals to different markets and, accordingly, requires different technologies and marketing strategies.
Revenues
Interest and dividend income	$ 7,628,916	$ 8,422,192
Income from fiduciary activities	899,805	826,646
Other income	2,213,464	2,441,239
Total operating income	10,742,185	11,690,077
Expenses
Interest expense	1,254,519	1,510,926
Provision for loan losses	200,000	200,000
Salaries and employee benefits	4,920,926	4,960,277
Other expenses	3,304,876	3,589,161
Total operating expenses	9,680,321	10,260,364
Income before income taxes	1,061,864	1,429,713
Income tax expense (benefit)	160,547	351,412
Net income	901,317	1,078,301
Total assets	890,838,778	869,582,368	907,498,704
Bank [Member]
Revenues
Interest and dividend income	7,620,028	8,412,294
Income from fiduciary activities	0	0
Other income	2,118,122	2,352,677
Total operating income	9,738,150	10,764,971
Expenses
Interest expense	1,254,908	1,511,220
Provision for loan losses	200,000	200,000
Salaries and employee benefits	4,293,922	4,288,536
Other expenses	3,122,462	3,486,413
Total operating expenses	8,871,292	9,486,169
Income before income taxes	866,858	1,278,802
Income tax expense (benefit)	94,408	293,179
Net income	772,450	985,623
Total assets	886,584,818	865,301,605
Trust [Member]
Revenues
Interest and dividend income	9,277	9,584
Income from fiduciary activities	899,805	826,646
Other income	110,768	104,338
Total operating income	1,019,850	940,568
Expenses
Interest expense	0	0
Provision for loan losses	0	0
Salaries and employee benefits	516,050	537,013
Other expenses	217,519	245,316
Total operating expenses	733,569	782,329
Income before income taxes	286,281	158,239
Income tax expense (benefit)	97,169	53,633
Net income	189,112	104,606
Total assets	5,491,165	5,147,172
Unconsolidated Parent [Member]
Revenues
Interest and dividend income	961,562	1,092,404
Income from fiduciary activities	0	0
Other income	50,100	165,000
Total operating income	1,011,662	1,257,404
Expenses
Interest expense	0	1,567
Provision for loan losses	0	0
Salaries and employee benefits	110,954	134,728
Other expenses	30,421	38,208
Total operating expenses	141,375	174,503
Income before income taxes	870,287	1,082,901
Income tax expense (benefit)	(31,030)	4,600
Net income	901,317	1,078,301
Total assets	88,229,091	86,099,666
Eliminations [Member]
Revenues
Interest and dividend income	(961,951)	(1,092,090)
Income from fiduciary activities	0	0
Other income	(65,526)	(180,776)
Total operating income	(1,027,477)	(1,272,866)
Expenses
Interest expense	(389)	(1,861)
Provision for loan losses	0	0
Salaries and employee benefits	0	0
Other expenses	(65,526)	(180,776)
Total operating expenses	(65,915)	(182,637)
Income before income taxes	(961,562)	(1,090,229)
Income tax expense (benefit)	0	0
Net income	(961,562)	(1,090,229)
Total assets	$ (89,466,296)	$ (86,966,075)