Annual report pursuant to Section 13 and 15(d)

Commitments - Off Take Sales Agreements (Details)

v3.19.3.a.u2
Commitments - Off Take Sales Agreements (Details)
lb in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
lb
Commitments [Abstract]  
2020 Commitment (in pounds) | lb 200
2021 Commitment (in pounds) | lb 25
2020 Commitment (in dollars) | $ $ 8,300
2021 Commitment (in dollars) | $ $ 1,306