WARRANTS Narrative (Detail) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended			3 Months Ended	0 Months Ended
	Mar. 15, 2010	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010 Range One	Dec. 31, 2012 Range One	Dec. 31, 2010 Range Two	Dec. 31, 2012 Range Two	Dec. 31, 2012 Range Three	Dec. 31, 2012 Range Four	Dec. 31, 2012 Rsignia Range Four	Mar. 15, 2010 Insight Information Technology, LLC Range Three
Class of Warrant or Right [Line Items]
Number of warrants exercised by holders	1,022,728	146,116	74,669	78,455	87,875	12,500	58,241	7,273
Warrant exercise price (usd per share)					4.00	4.00	5.50	5.50	9.25	12.65	12.65	9.25
Proceeds from warrants exercised	$ 4,500,000	$ 477,000	$ 90,000
Period determining warrant average exercise price		5 days	5 days
Number of warrants exchanged		47,387	89,432
Shares issued upon warrant exercise		31,334	54,896
Warrants issued											158,116	215,000
Expiration period from issuance											7 years	7 years
Discount amortization period												2 years
Unamortized discount												$ 585,000