ACCOUNTS RECEIVABLE (Tables)

9 Months Ended

Sep. 30, 2021

ACCOUNTS RECEIVABLE

Schedule of accounts receivable

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

	September 30,		December 31,
	2021		2020
Trade receivables	$	23,257	$	7,016
Allowance for doubtful accounts		(379)		(500)
Total accounts receivable	$	22,878	$	6,516

Schedule of allowance for doubtful accounts

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

	September 30,		December 31,
	2021		2020
Balance at beginning of period	$	500	$	199
Provision for uncollectible accounts		(316)		377
Uncollectible accounts written off		195		(76)
Balance at end of period	$	379	$	500