Annual report pursuant to Section 13 and 15(d)

Cost of Sales (Details)

v3.22.0.1
Cost of Sales (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Inventory      
Cost of product sales $ 0 $ 5,166,000 $ 20,011,000
Lower of cost or NRV adjustments 7,000,000 7,802,000 10,264,000
Cost of sales $ 7,000,000 $ 12,968,000 $ 30,275,000