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 Units, shares in Thousands, $ in Thousands
 6 Months Ended
Jun. 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 1,780
Weighted Average Exercise Price, Outstanding | $ / shares $ 2.53
Aggregate Intrinsic Value, Beginning | $ $ 29
Number of Shares Available for Grant, Increase in authorized options 5,000
Number of Shares Available for Grant, Granted
Total Options Outstanding, Granted
Weighted Average Exercise Price, Granted | $ / shares
Aggregate Intrinsic Value, Granted | $
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 8,580
Total Options Outstanding, Ending 1,439
Weighted Average Exercise Price, Ending | $ / shares $ 2.62
Aggregate Intrinsic Value, Ending | $