Quarterly report pursuant to Section 13 or 15(d)

Equity (Details)

v3.20.2
Equity (Details)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
$ / shares
shares
Pre-funded Warrants [Member]  
Number of Shares  
Outstanding, Beginning
Granted 3,459
Exercised (1,200)
Outstanding, Ending 2,259
Exercisable 2,259
Weighted Average Exercise Price  
Outstanding, Beginning | $ / shares
Granted | $ / shares 0.003
Exercised | $ / shares 0.003
Outstanding, Ending | $ / shares 0.003
Exercisable | $ / shares $ 0.003
Aggregate Intrinsic Value  
Outstanding, Beginning | $
Outstanding, Ending | $ 23,814
Exercisable | $ $ 23,814
Warrants [Member]  
Number of Shares  
Outstanding, Beginning 2,871
Granted
Exercised
Cancelled/Expired
Outstanding, Ending 2,871
Exercisable 2,865
Weighted Average Exercise Price  
Outstanding, Beginning | $ / shares $ 20.71
Granted | $ / shares
Exercised | $ / shares
Cancelled | $ / shares
Outstanding, Ending | $ / shares 20.71
Exercisable | $ / shares $ 20.37
Weighted Average Remaining Contractual Term (in years)  
Outstanding, Beginning 2 years 11 months 12 days
Outstanding, Ending 2 years 5 months 12 days
Exercisable 2 years 5 months 12 days
Aggregate Intrinsic Value  
Outstanding, Beginning | $ $ 301
Outstanding, Ending | $ 497
Exercisable | $ $ 496
Stock Options [Member]  
Number of Shares  
Outstanding, Beginning 380
Granted
Cancelled/Expired (15)
Outstanding, Ending 365
Exercisable 194
Weighted Average Exercise Price  
Outstanding, Beginning | $ / shares $ 35.10
Cancelled | $ / shares 15.86
Outstanding, Ending | $ / shares 36.00
Exercisable | $ / shares $ 56.43
Weighted Average Remaining Contractual Term (in years)  
Outstanding, Beginning 7 years 10 months 17 days
Outstanding, Ending 7 years 5 months 27 days
Exercisable 6 years 5 months 20 days
Aggregate Intrinsic Value  
Outstanding, Beginning | $
Outstanding, Ending | $ 519
Exercisable | $ $ 112