Summary of Intangible Assets Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (1,900)	$ (1,700)
Net Carrying Amount	132	334
Reacquired license - INTERCEPT Asia
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,017	2,017
Accumulated Amortization	(1,885)	(1,683)
Net Carrying Amount	$ 132	$ 334