XML 27 R13.htm IDEA: XBRL DOCUMENT v3.20.4
Inventory
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Inventory Inventory
Inventory consists of the following as of September 30, 2020 and December 31, 2019 (in thousands):
As of
September 30, 2020December 31, 2019
Raw materials$546 $412 
Work in process396 258 
Finished goods430 320 
Total$1,372 $990 
An inventory write-off of $112 thousand and $274 thousand was recorded for the three and nine months ended September 30, 2020, respectively. For the three and nine months ended September 30, 2019, no inventory write-off was recorded.
 Inventory
Inventory consists of the following as of December 31, 2019 and 2018 (in thousands):

As of December 31,
20192018
Raw materials$412 $258 
Work in process258 270 
Finished goods320 324 
Total$990 $852 

For the year ended December 31, 2019 an inventory write-off of $155 thousand was recorded. For the year ended December 31, 2018, no inventory write-off was recorded.