Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Other Benefit Plans (Stock Option Activity) (Details)

v3.20.1
Stock-Based Compensation and Other Benefit Plans (Stock Option Activity) (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
$ / shares
shares
Stock-Based Compensation and Other Benefit Plans [Abstract]  
Number of Shares Underlying Options, Outstanding at January 1, 2020 | shares 2,834
Number of Shares Underlying Options, Vested shares expired | shares (120)
Number of Shares Underlying Options, Outstanding at March 31, 2020 | shares 2,714
Number of Shares Underlying Options, Exercisable at March 31, 2019 | shares 2,043
Weighted Average Exercise Price Per Share, Outstanding at January 1, 2020 | $ / shares $ 1.55
Weighted Average Exercise Price Per Share, Vested shares expired | $ / shares 4.98
Weighted Average Exercise Price Per Share, Outstanding at March 31, 2020 | $ / shares 1.39
Weighted Average Exercise Price Per Share, Exercisable at March 31, 2020 | $ / shares $ 1.28
Weighted Average Remaining Contractual Term, Outstanding at March 31, 202- 2 years 7 months 20 days
Weighted Average Remaining Contractual Term, Exercisable at March 31, 2020 2 years 5 months 1 day
Aggregate Intrinsic Value, Outstanding at March 31, 2020 | $ $ 17
Aggregate Intrinsic Value, Exercisable at March 31, 2020 | $ $ 11