Quarterly report pursuant to Section 13 or 15(d)

Summary of Option Activity (Detail)

v3.20.1
Summary of Option Activity (Detail)
shares in Thousands
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Shares  
Beginning Balance | shares 1,287
Granted at fair market value | shares 20
Forfeited, cancelled, or expired | shares (32)
Ending Balance | shares 1,275
Options exercisable at March 31, 2020 | shares 1,061
Vested options expired during the quarter ended March 31, 2020 | shares 17
Weighted-Average Exercise Price  
Beginning Balance | $ / shares $ 5.77
Granted at fair market value | $ / shares 0.77
Forfeited, cancelled, or expired | $ / shares 8.87
Ending Balance | $ / shares 5.61
Options exercisable at March 31, 2020 | $ / shares 6.35
Vested options expired during the quarter ended March 31, 2020 | $ / shares $ 13.2
Weighted-Average Remaining Contractual Term (Years)  
Options outstanding 5 years 8 months 4 days
Options exercisable 5 years 1 month 9 days