Quarterly report pursuant to Section 13 or 15(d)

BALANCE SHEET DETAILS - Inventory (Details)

v3.20.2
BALANCE SHEET DETAILS - Inventory (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Inventory [Line Items]          
Raw materials $ 4,889,000   $ 4,889,000   $ 4,503,000
Inventory, Work in Process, Gross 797,000   797,000   415,000
Finished goods 2,999,000   2,999,000   5,053,000
Inventory 8,685,000   8,685,000   9,971,000
Inventory write-downs 100,000 $ 0 400,000 $ 0  
Non-US          
Inventory [Line Items]          
Inventory $ 0   $ 0   $ 300,000