Federal Income Taxes - Reconciliation of Company's Effective Tax Rate (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Provision computed at statutory rate, value	$ 692,391	$ 693,074	$ 321,996
State and local taxes, value	2,954	4,864	12,606
Nondeductible meals, entertainment and legal expense, value	9,453	8,815	19,858
Valuation Allowance, value	48,243
Other-net, value	1,798	13,684	1,675
INCOME TAX EXPENSE	$ 754,839	$ 720,437	$ 356,135
Provision computed at statutory rate, effective tax rate	34.00%	34.00%	34.00%
State and local taxes, effective tax rate	0.10%	0.20%	1.40%
Nondeductible meals, entertainment and legal expense, effective tax rate	0.50%	0.40%	2.10%
Valuation Allowance, effective tax rate	2.40%
Other-net, effective tax rate	0.10%	0.70%	0.10%
Provision for income taxes, effective tax rate	37.10%	35.30%	37.60%