Quarterly report pursuant to Section 13 or 15(d)

Cash Flow Statement - Additional Information (Detail)

v3.10.0.1
Cash Flow Statement - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2018
Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]        
Interest paid     $ 8 $ 8
Income taxes paid (refunded)     (74) 1,801
Issuance of treasury stock $ 79 $ 62 79 62
Capital expenditures     242 29
Capital leases     $ 100 $ 0