XML 44 R32.htm IDEA: XBRL DOCUMENT v3.22.2.2
Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventories  
Schedule of inventories

​

​

​

​

​

​

​

​

​

​

December 31,

​

      

2021

      

2020

Work in process

​

$

973

​

$

961

Finished goods

​

​

11,480

​

​

12,312

Supplies and parts

​

​

7,028

​

​

5,473

Less: Allowance for obsolescence

​

​

(4,266)

​

​

(4,432)

​

​

​

15,215

​

​

14,314