Consolidated Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Temporary timing differences:
Stock compensation	$ 1,079	$ 628
Contingent consideration	2,126	767
Other	1,150	1,674
Total temporary timing differences	4,355	3,069
Net operating loss carryforwards	12,389	12,580
Tax business credits carryforwards	1,820	1,782
Total deferred tax assets	18,564	17,431
Valuation allowance	(18,514)	(17,298)
Net deferred tax assets	50	133
Deferred tax liabilities:
Goodwill and intangible assets	(501)	(251)
Net deferred tax liabilities	$ (451)	$ (118)