Allowance for Loan Losses (Details 3) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
With no related allowance:
Recorded Investment	$ 2,340,207	$ 3,439,723
Customers' Unpaid Principal Balance	2,361,753	4,253,474
Related Allowance
Average Recorded Investment	2,353,477	3,385,145
Interest Income Recognized	10,259	79,186
Interest Income Collected	7,930	97,099
With an allowance recorded:
Recorded Investment	4,747,506	4,141,957
Customers' Unpaid Principal Balance	5,564,380	4,187,481
Related Allowance	888,565	833,883
Average Recorded Investment	4,361,710	3,109,017
Interest Income Recognized	31,629	116,268
Interest Income Collected	29,213	104,214
Total Impaired Loans:
Recorded Investment	7,087,713	7,581,680
Customers' Unpaid Principal Balance	7,926,133	8,440,955
Related Allowance	888,565	833,883
Average Recorded Investment	6,715,187	6,494,162
Interest Income Recognized	41,888	195,454
Interest Income Collected	37,143	201,313
Construction, Land and Land Development [Member]
With no related allowance:
Recorded Investment	13,420	213,768
Customers' Unpaid Principal Balance	13,806	213,914
Related Allowance
Average Recorded Investment	13,855	202,754
Interest Income Recognized		162
Interest Income Collected		130
With an allowance recorded:
Recorded Investment	200,000	61,882
Customers' Unpaid Principal Balance	200,000	65,566
Related Allowance	23,618	25,882
Average Recorded Investment	200,000	63,761
Interest Income Recognized
Interest Income Collected
Total Impaired Loans:
Recorded Investment	213,420	275,650
Customers' Unpaid Principal Balance	213,806	279,480
Related Allowance	23,618	25,882
Average Recorded Investment	213,855	266,515
Interest Income Recognized		162
Interest Income Collected		130
Farmland [Member]
With no related allowance:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
With an allowance recorded:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
Total Impaired Loans:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
Residential First Mortgages [Member]
With no related allowance:
Recorded Investment	1,478,276	1,495,910
Customers' Unpaid Principal Balance	1,492,465	1,495,910
Related Allowance
Average Recorded Investment	1,487,094	1,372,196
Interest Income Recognized	3,325	44,756
Interest Income Collected	3,383	59,727
With an allowance recorded:
Recorded Investment	2,815,975	2,782,380
Customers' Unpaid Principal Balance	2,815,975	2,807,875
Related Allowance	353,385	467,454
Average Recorded Investment	2,511,351	1,803,730
Interest Income Recognized	28,504	90,030
Interest Income Collected	26,774	82,370
Total Impaired Loans:
Recorded Investment	4,294,251	4,278,290
Customers' Unpaid Principal Balance	4,308,440	4,303,785
Related Allowance	353,385	467,454
Average Recorded Investment	3,998,445	3,175,925
Interest Income Recognized	31,829	134,786
Interest Income Collected	30,157	142,097
Residential Revolving and Junior Mortgages [Member]
With no related allowance:
Recorded Investment	96,341
Customers' Unpaid Principal Balance	98,153
Related Allowance
Average Recorded Investment	97,247
Interest Income Recognized
Interest Income Collected
With an allowance recorded:
Recorded Investment	1,128,247
Customers' Unpaid Principal Balance	1,936,968
Related Allowance	321,493
Average Recorded Investment	1,041,632
Interest Income Recognized	1,756
Interest Income Collected	1,547
Total Impaired Loans:
Recorded Investment	1,224,588
Customers' Unpaid Principal Balance	2,035,121
Related Allowance	321,493
Average Recorded Investment	1,138,879
Interest Income Recognized	1,756
Interest Income Collected	1,547
Residential Junior Mortgages [Member]
With no related allowance:
Recorded Investment		971,654
Customers' Unpaid Principal Balance		1,785,259
Related Allowance
Average Recorded Investment		1,380,596
Interest Income Recognized		3,750
Interest Income Collected		2,488
With an allowance recorded:
Recorded Investment		365,107
Customers' Unpaid Principal Balance		381,452
Related Allowance		101,253
Average Recorded Investment		310,726
Interest Income Recognized		1,953
Interest Income Collected		1,205
Total Impaired Loans:
Recorded Investment		1,336,761
Customers' Unpaid Principal Balance		2,166,711
Related Allowance		101,253
Average Recorded Investment		1,691,321
Interest Income Recognized		5,703
Interest Income Collected		3,693
Commercial Mortgages (Non-Owner-Occupied) [Member]
With no related allowance:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
With an allowance recorded:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
Total Impaired Loans:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
Commercial Mortgages (Owner-Occupied) [Member]
With no related allowance:
Recorded Investment	752,170	758,391
Customers' Unpaid Principal Balance	757,329	758,391
Related Allowance
Average Recorded Investment	755,281	429,600
Interest Income Recognized	6,934	30,518
Interest Income Collected	4,547	34,754
With an allowance recorded:
Recorded Investment	530,154	858,610
Customers' Unpaid Principal Balance	538,307	858,610
Related Allowance	115,859	165,084
Average Recorded Investment	535,173	863,479
Interest Income Recognized		15,900
Interest Income Collected		11,961
Total Impaired Loans:
Recorded Investment	1,282,324	1,617,001
Customers' Unpaid Principal Balance	1,295,636	1,617,001
Related Allowance	115,859	165,084
Average Recorded Investment	1,290,454	1,293,079
Interest Income Recognized	6,934	46,418
Interest Income Collected	4,547	46,715
Commercial and industrial [Member]
With no related allowance:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
With an allowance recorded:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
Total Impaired Loans:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
Consumer [Member]
With no related allowance:
Recorded Investment
Customers' Unpaid Principal Balance
Related Allowance
Average Recorded Investment
Interest Income Recognized
Interest Income Collected
With an allowance recorded:
Recorded Investment	73,130	73,978
Customers' Unpaid Principal Balance	73,130	73,978
Related Allowance	74,210	74,210
Average Recorded Investment	73,554	67,322
Interest Income Recognized	1,369	8,385
Interest Income Collected	892	8,678
Total Impaired Loans:
Recorded Investment	73,130	73,978
Customers' Unpaid Principal Balance	73,130	73,978
Related Allowance	74,210	74,210
Average Recorded Investment	73,554	67,322
Interest Income Recognized	1,369	8,385
Interest Income Collected	$ 892	$ 8,678