General form of registration statement for all companies including face-amount certificate companies

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details)

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ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES      
Warranty reserve $ 1,734 $ 1,491 $ 116
Compensation and benefits related 657 897 278
Professional services 2,043 780 517
Inventory purchases 86 620 381
Accrued sales and use tax 470 578 4
Transaction costs payable 577    
Other 488 687 510
Total $ 6,055 $ 5,053 $ 1,806