Summary of Intangible Assets Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,017	$ 2,017
Accumulated Amortization	(1,279)	(1,077)
Net Carrying Amount	738	940
Reacquired license - INTERCEPT Asia
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,017	2,017
Accumulated Amortization	(1,279)	(1,077)
Net Carrying Amount	$ 738	$ 940