XML 52 R33.htm IDEA: XBRL DOCUMENT v3.20.4
Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventories  
Schedule of Utility Inventory

Inventories consist of the following (in thousands):

    

December 31, 

    

December 31, 

2020

2019

Raw materials

$

7,544

$

357

Work-in-process

227

Finished goods

 

2,764

 

117

$

10,535

$

474