Loans - Recorded Investment in Past Due and Non-accruing Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due	$ 916,683	$ 1,124,007
90 Days or More Past Due and Still Accruing	18,710	125,519
Nonaccruals	2,753,886	5,730,464
Total Past Due and Nonaccruals	3,689,279	6,979,990
Current	246,642,097	231,157,505
Total Gross Loans	250,331,376	238,137,495
Construction, Land and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due	64,643	230,866
90 Days or More Past Due and Still Accruing
Nonaccruals	853,565	655,397
Total Past Due and Nonaccruals	918,208	886,263
Current	30,920,675	28,138,031
Total Gross Loans	31,838,883	29,024,294
Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due
90 Days or More Past Due and Still Accruing
Nonaccruals
Total Past Due and Nonaccruals
Current	1,261,825	1,442,757
Total Gross Loans	1,261,825	1,442,757
Commercial Mortgages (Non-Owner Occupied)
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due
90 Days or More Past Due and Still Accruing
Nonaccruals		318,418
Total Past Due and Nonaccruals		318,418
Current	14,626,139	13,102,133
Total Gross Loans	14,626,139	13,420,551
Commercial Mortgages (Owner Occupied)
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due
90 Days or More Past Due and Still Accruing		71,254
Nonaccruals	426,737	819,467
Total Past Due and Nonaccruals	426,737	890,721
Current	33,750,577	32,743,663
Total Gross Loans	34,177,314	33,634,384
Residential First Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due	667,987	761,981
90 Days or More Past Due and Still Accruing		502
Nonaccruals	1,083,302	2,677,788
Total Past Due and Nonaccruals	1,751,289	3,440,271
Current	112,706,272	103,014,769
Total Gross Loans	114,457,561	106,455,040
Residential Revolving and Junior Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due	108,113	18,081
90 Days or More Past Due and Still Accruing
Nonaccruals	76,110	1,257,915
Total Past Due and Nonaccruals	184,223	1,275,996
Current	23,861,172	25,706,516
Total Gross Loans	24,045,395	26,982,512
Commercial and Industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due	15,788	100,886
90 Days or More Past Due and Still Accruing		50,075
Nonaccruals	310,929
Total Past Due and Nonaccruals	326,717	150,961
Current	23,611,884	20,373,586
Total Gross Loans	23,938,601	20,524,547
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 Days Past Due	60,152	12,193
90 Days or More Past Due and Still Accruing	18,710	3,688
Nonaccruals	3,243	1,479
Total Past Due and Nonaccruals	82,105	17,360
Current	5,903,553	6,636,050
Total Gross Loans	$ 5,985,658	$ 6,653,410