Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2012 Internal Revenue Service (IRS)	Dec. 31, 2012 State income tax returns Minimum	Dec. 31, 2012 State income tax returns Maximum
Income Taxes [Line Items]
Deferred tax asset valuation allowance	$ 422,564		$ 291,249
Nonrecurring gain on acquisition of business	1,186,207		1,140,886
Federal tax credit	700,000	900,000
Nondeductible penalty settlement with SEC		$ 500,000
Tax examinations				2009
Remaining years subject to tax examination				The Company remains subject to U.S. federal examination for the tax years ended on or after December 31, 2009. Additionally, any net operating losses that were generated in prior years and utilized through 2009 may also be subject to examination by the IRS.
Tax examination period					3 years	5 years