Annual report pursuant to Section 13 and 15(d)

REVENUE RECOGNITION - Schedule of long term trade receivables (Details)

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REVENUE RECOGNITION - Schedule of long term trade receivables (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Trade Accounts Receivable    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Note receivable $ 2,962 $ 4,104
Allowance for losses (522) (292)
Notes receivable, net 2,440 3,812
Notes Receivable    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Note receivable 1,500 1,166
Allowance for losses (522) (292)
Notes receivable, net $ 978 $ 874