Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation Schedule of Restricted Stock Options (Details)

v3.19.1
Stock-Based Compensation Schedule of Restricted Stock Options (Details) - Restricted stock and restricted stock units - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Per share weighted average grant-date fair value of restricted stock and restricted stock units granted (usd per share) $ 2.17 $ 2.44 $ 4.00
Total fair value of restricted stock and restricted stock units vested $ 377 $ 392 $ 294