Working Capital Line of Credit - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Line of Credit Facility [Line Items]
Outstanding line of credit amount	$ 0		$ 0
Expiration date	Oct. 01, 2016
Finite-lived intangible assets	$ 19,787,900		$ 22,294,775
Inventory, Net, Total	11,242,084	$ 6,840,845
Property and equipment, net	11,042,067	8,141,682
Line of Credit
Line of Credit Facility [Line Items]
Accounts receivable net	7,600,000
Finite-lived intangible assets	9,400,000
Inventory, Net, Total	5,600,000
Property and equipment, net	1,300,000
Line of credit facility other		$ 1,200,000
New Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity	$ 4,000,000
Debt instrument, description of variable rate basis	1.75% above either the daily one month LIBOR or the LIBOR in effect on the first day of the applicable fixed rate term
Line of credit facility, expiration period	2 years