Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
Valuation allowance	$ 415,453	$ 621,528
Valuation allowance, deferred tax asset, change in amount	206,075
Federal statutory rate	35.00%	35.00%	35.00%
Effective income tax rates, income taxes attributable to the discontinued operations	41.30%	36.70%	39.30%
Uncertain tax positions	0	0	29,000
Year for audit of federal and state tax return by revenue service	2007
Accrued interest and penalties for uncertain tax positions	0	0	0
Income tax refunds		177,500
Income tax paid	1,645,939		335,467
Charitable Contributions [Member]
Income Taxes [Line Items]
Valuation allowance	0
Valuation allowance, deferred tax asset, change in amount		$ 14,175