Share-Based Compensation (Tables)
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12 Months Ended |
Dec. 31, 2021 |
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| Share Based Compensation [Line Items] |
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| Share-based Payment Arrangement, Cost by Plan [Table Text Block] |
Share-based compensation, inclusive of amounts included in inventory, for the periods presented was as follows:
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$ |
416 |
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$ |
580 |
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225 |
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— |
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— |
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540 |
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37 |
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110 |
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| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
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6.25 |
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6.25 |
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110 |
% |
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120 |
% |
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0 |
% |
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0 |
% |
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0.46 |
% |
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0.56 |
% |
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| Share-based Payment Arrangement, Option, Activity [Table Text Block] |
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Weighted-
Average
Exercise
Price |
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Aggregate
Intrinsic
Value
(in thousands) |
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Weighted-
Average
Remaining
Contractual
Term (Years) |
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Outstanding as of December 31, 2020 |
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115,791 |
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$ |
24.59 |
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$ |
5,763 |
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6.25 |
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— |
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— |
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(21,716 |
) |
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10.90 |
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(17,119 |
) |
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32.16 |
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Outstanding as of December 31, 2021 |
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76,956 |
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$ |
26.76 |
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$ |
12,797 |
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5.39 |
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Exercisable as of December 31, 2021 |
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58,445 |
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$ |
23.16 |
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$ |
9,929 |
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4.62 |
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| Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] |
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Weighted- Average Grant-Date
Fair Value |
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Unvested as of December 31, 2020 |
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— |
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$ |
— |
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568,414 |
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83.60 |
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— |
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— |
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(31,788 |
) |
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89.26 |
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Unvested as of December 31, 2021 |
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536,626 |
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$ |
83.27 |
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| Prior to Cancellation Of PredaSAR Plan [Member] |
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| Share Based Compensation [Line Items] |
|
| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
The fair value of the stock options immediately prior to cancellation was estimated using the Black-Scholes option pricing model using the following assumptions:
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5.50 |
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6.01 |
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105 |
% |
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105 |
% |
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0 |
% |
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0 |
% |
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0.95 |
% |
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0.95 |
% |
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| PredaSAR Plan [Member] |
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| Share Based Compensation [Line Items] |
|
| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
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6.25 |
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6.25 |
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110 |
% |
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110 |
% |
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0 |
% |
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0 |
% |
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0.43 |
% |
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0.65 |
% |
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| Share-based Payment Arrangement, Option, Activity [Table Text Block] |
The following table summarizes activity related to stock options granted under the PredaSAR Plan during 2021:
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Weighted-
Average
Exercise
Price |
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|
Aggregate
Intrinsic
Value
(in thousands) |
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Weighted-
Average
Remaining
Contractual
Term (Years) |
|
Outstanding as of December 31, 2020 |
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1,967 |
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$ |
988.64 |
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$ |
— |
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9.50 |
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— |
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— |
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— |
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— |
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(45 |
) |
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917.25 |
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(1,922 |
) |
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990.31 |
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Outstanding as of December 31, 2021 |
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— |
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$ |
— |
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$ |
— |
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— |
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Exercisable as of December 31, 2021 |
|
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— |
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$ |
— |
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$ |
— |
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— |
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