Risk Ratings of Loans by Categories of Loans (Detail) (Loans Receivable, USD $)	12 Months Ended
	Dec. 31, 2013 Loan	Dec. 31, 2012 Loan	Dec. 31, 2011 Loan
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	$ 274,827,478	$ 254,022,692	$ 237,723,480
Non-accrual	2,713,393	4,008,665	5,060,693
Troubled debt restructures		2,202,268	4,108,209
Number of TDRs accounts		2	3
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	261,838,072	239,697,588	219,511,940
Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	8,213,339	8,829,428	7,721,303
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	4,710,368	5,405,784	10,415,413
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	65,699	89,892	74,824
Loss
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Non-performing TDRs
Financing Receivable, Recorded Investment [Line Items]
Troubled debt restructures		2,202,268	2,818,295
Number of TDRs accounts		2	1
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	4,172,747	4,901,107	7,193,074
Non-accrual	14,286	17,286	20,286
Troubled debt restructures			9,491
Number of TDRs accounts			1
Commercial and Industrial \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	3,594,809	4,296,139	5,882,615
Commercial and Industrial \| Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	299,152	183,507	327,048
Commercial and Industrial \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	278,786	421,461	983,411
Commercial and Industrial \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Commercial and Industrial \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Commercial and Industrial \| Non-performing TDRs
Financing Receivable, Recorded Investment [Line Items]
Troubled debt restructures
Number of TDRs accounts
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	68,778,608	72,879,104	71,073,894
Non-accrual	1,237,647	2,645,320	4,484,260
Troubled debt restructures		1,369,768	2,818,295
Number of TDRs accounts		1	1
Commercial Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	59,914,422	63,297,427	58,798,799
Commercial Real Estate \| Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	5,499,993	5,970,942	4,736,458
Commercial Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	3,364,193	3,610,735	7,538,637
Commercial Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Commercial Real Estate \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Commercial Real Estate \| Non-performing TDRs
Financing Receivable, Recorded Investment [Line Items]
Troubled debt restructures		1,369,768	2,818,295
Number of TDRs accounts		1	1
Consumer and Indirect
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	73,230,433	66,096,285	50,118,030
Non-accrual	338,212	237,193	74,824
Troubled debt restructures
Number of TDRs accounts
Consumer and Indirect \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	71,554,400	64,160,355	48,528,582
Consumer and Indirect \| Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	1,102,091	1,485,366	1,324,580
Consumer and Indirect \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	508,243	360,672	190,044
Consumer and Indirect \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	65,699	89,892	74,824
Consumer and Indirect \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Consumer and Indirect \| Non-performing TDRs
Financing Receivable, Recorded Investment [Line Items]
Troubled debt restructures
Number of TDRs accounts
Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	128,645,690	110,146,196	109,338,482
Non-accrual	1,123,248	1,108,866	481,323
Troubled debt restructures		832,500	1,280,423
Number of TDRs accounts		1	1
Residential Real Estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	126,774,441	107,943,667	106,301,944
Residential Real Estate \| Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	1,312,103	1,189,613	1,333,217
Residential Real Estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross	559,146	1,012,916	1,703,321
Residential Real Estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Residential Real Estate \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross
Residential Real Estate \| Non-performing TDRs
Financing Receivable, Recorded Investment [Line Items]
Troubled debt restructures		$ 832,500
Number of TDRs accounts		1