ACCOUNTS RECEIVABLE (Tables)

12 Months Ended

Dec. 31, 2021

ACCOUNTS RECEIVABLE

Schedule of accounts receivable

The components of accounts receivable are as follows (in thousands):

	December 31,
	2021		2020
Trade receivables	$	47,352	$	7,016
Allowance for doubtful accounts		(665)		(500)
Total accounts receivable	$	46,687	$	6,516

Schedule of allowance for doubtful accounts

The following table summarizes activity in the allowance for doubtful accounts (in thousands):

	Years Ended December 31,
	2021		2020
Balance at beginning of period	$	500	$	199
Provision for uncollectible accounts, net of recoveries		447		377
Uncollectible accounts written off		(282)		(76)
Balance at end of period	$	665	$	500