Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
CONSOLIDATED BALANCE SHEETS    
Accounts receivable, allowance for doubtful accounts $ 624 $ 1,113
Property and equipment, accumulated depreciation and amortization $ 37,510 $ 33,643
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 190,000,000 190,000,000
Common stock, shares issued 27,483,350 27,483,350
Common stock, shares outstanding 27,483,350 27,483,350