ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES - Table of accrued expenses and other current liabilities (Detail) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Accrued Liabilities and Other Liabilities Disclosure Current [Abstract]
Compensation and benefits	$ 885,931	$ 635,039
Interest	548,020	265,719
Product warranty liability	384,126	263,000
Customer deposits	125,539	79,384
Rent	42,565	39,674
Professional fees	34,000	21,388
Insurance	32,322
Other	251,836	211,130
Accrued expenses and other current liabilities total	$ 2,304,339	$ 1,515,334