Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2020

Long-Term Debt

Schedule of interest incurred and paid on the credit facility, interest capitalized related to facilities and equipment under construction, and the related weighted average interest rates on long term debt

Years Ended December 31,	2020		2019		2018
(in thousands)
Interest incurred	$	276	$	256	$	390
Interest paid	$	160	$	162	$	241