Summary of Intangible Assets Net (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,017	$ 2,017
Accumulated Amortization	(471)	(269)
Net Carrying Amount	1,546	1,748
Reacquired license - INTERCEPT Asia
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,017	2,017
Accumulated Amortization	(471)	(269)
Net Carrying Amount	$ 1,546	$ 1,748