Quarterly report pursuant to Section 13 or 15(d)

ACCOUNTS RECEIVABLE - Allowance for doubtful accounts (Details)

v3.22.1
ACCOUNTS RECEIVABLE - Allowance for doubtful accounts (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
ACCOUNTS RECEIVABLE      
Balance at beginning of period $ 665 $ 500 $ 500
Provision for uncollectible accounts, net of recoveries 419 $ 72 447
Uncollectible accounts written off (7)   (282)
Balance at end of period $ 1,077   $ 665