Pension Plan - Schedule of Unrecognized (Gain) or Loss (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]
Liability loss determined from the January 1, 2013 census and included in this year's net periodic cost	$ 129,024
Asset gain occurring over the measurement period	(736,025)
Gain due to assumption changes effective as of December 31, 2013	(933,104)
Total unrecognized gain	$ (1,540,105)