Quarterly report pursuant to Section 13 or 15(d)

Schedule of Share-based Compensation, Stock Options, Activity (Details)

v3.21.2
Schedule of Share-based Compensation, Stock Options, Activity (Details) - Share-based Payment Arrangement, Option [Member]
shares in Thousands
9 Months Ended
Sep. 30, 2021
USD ($)
$ / shares
shares
Option Indexed to Issuer's Equity [Line Items]  
Number of Shares Available for Grant, Beginning 2,263
Total Options Outstanding, Beginning 1,779
Weighted Average Exercise Price, Outstanding | $ / shares $ 2.53
Aggregate Intrinsic Value, Beginning | $
Number of Shares Available for Grant, Increase in authorized options 5,000
Number of Shares Available for Grant, Granted (1,037)
Total Options Outstanding, Granted 1,037
Weighted Average Exercise Price, Granted | $ / shares $ 1.11
Aggregate Intrinsic Value, Granted | $ / shares
Number of Shares Available for Grant, Expired 976
Number of Shares Available for Grant, Cancelled 341
Total Options Outstanding, Cancelled (341)
Weighted Average Exercise Price, Cancelled | $ / shares $ 2.15
Number of Shares Available for Grant, Ending 7,543
Total Options Outstanding, Ending 2,475
Weighted Average Exercise Price, Ending | $ / shares $ 1.99
Aggregate Intrinsic Value, Ending | $