Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill - Additional Information (Detail)

v3.3.0.814
Intangible Assets and Goodwill - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Jun. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Goodwill And Intangible Assets Disclosure [Abstract]          
Intangible assets and goodwill impairment     $ 0    
Amortization expense $ 14,000 $ 17,000   $ 49,000 $ 52,000