Long-term Debt and Obligations - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended	1 Months Ended	3 Months Ended
	Oct. 31, 2014	Mar. 31, 2015	Apr. 30, 2014	Jun. 30, 2014	Dec. 31, 2014
Line of Credit Facility [Line Items]
Percentage of redemption fee		4.00%
Principal and interest payment frequency		The Company exercised its option to defer payment of the 3.5% accrued interest and is required to pay only interest for the first five years of the term. Principal payments are due in four equal installments during the sixth year of the term.
Annual revenue requirements	$ 55,000,000
Increase in annual revenue in fiscal years	15,000,000
Annual revenue recognize description		The term loan agreement also includes liquidity and revenue-based financial covenants. The Company must satisfy certain minimum annual revenue requirements, specifically $55.0 million for 2015 with annual increases of $15.0 million for each fiscal year thereafter.
Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Credit facility, borrowing capacity			45,000,000
Credit facility, borrowing capacity			51,000,000
Credit facility, Outstanding			20,000,000
End of term payment			1,000,000
Amount of make-whole premium payment			300,000
Total incurred and recorded repayment			1,400,000
Percentage of accrue interest	12.50%
Percentage of deferred payment	3.50%				3.50%
End of deferred payment term		First four years term
Loss on extinguishment of debt				600,000
Credit facility, additional borrowing capacity	15,000,000
Term Loan Facility [Member] | October 2014 [Member]
Line of Credit Facility [Line Items]
Credit facility, additional borrowing capacity	$ 10,000,000