Annual report pursuant to Section 13 and 15(d)

Quarterly Results of Operations (Unaudited) (Details)

v3.10.0.1
Quarterly Results of Operations (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Quarterly Results of Operations (Unaudited)                      
Revenues $ 23,433 $ 22,660 $ 20,584 $ 17,260 $ 16,971 $ 16,046 $ 15,168 $ 12,241 $ 83,937 $ 60,426 $ 41,108
Gross profit 19,793 19,196 17,478 14,547 14,357 13,542 12,891 10,325 71,014 51,115 34,641
Net loss $ (5,224) $ (4,102) $ (7,427) $ (5,644) $ (2,499) $ (2,124) $ (2,060) $ (3,762) $ (22,397) $ (10,445) $ (14,411)
Loss per common share — basic and diluted $ (0.13) $ (0.11) $ (0.20) $ (0.16) $ (0.07) $ (0.06) $ (0.06) $ (0.11) $ (0.60) $ (0.31) $ (0.47)