Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Credit Losses for Financing Receivables, Current (Details)

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Summary of Significant Accounting Policies - Schedule of Credit Losses for Financing Receivables, Current (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Allowance for doubtful accounts - beginning of year $ 487 $ 105
(Recovery of) provision for bad debt reserve (101) 386
Recovery of write-off (write-off) 18 (4)
Allowance for doubtful accounts - end of year $ 404 $ 487