Employee Benefit Plan - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Contribution Plan, Employer Matching Contribution, Percent	25.00%
Defined Contribution Plan Employer Matching Contribution Vested Period	5 years
Defined Contribution Plan, Cost Recognized	$ 8,841	$ 10,663
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount	$ 1,500