Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Accounts receivable, net of allowance $ 926 $ 936
Preferred stock, par value (in dollars per share) $ 0.0001  
Preferred Stock, authorized (shares) 10,000,000  
Preferred Stock, issued (in shares)  
Preferred stock, outstanding (in shares)  
Class A common stock    
Common stock, par value (in dollars per share) $ 0.01  
Common stock, authorized (in shares) 125,000,000  
Common stock, issued (in shares) 10,479,000 9,999,000
Common stock, outstanding (in shares) 10,292,000 9,812,000
Class B common stock    
Common stock, par value (in dollars per share) $ 0.0001  
Common stock, authorized (in shares) 10,000,000  
Common stock, issued (in shares) 5,870,000 5,975,000
Common stock, outstanding (in shares) 5,870,000 5,975,000
Class C common stock    
Common stock, par value (in dollars per share) $ 0.0001  
Common stock, authorized (in shares) 100,000,000  
Common stock, issued (in shares) 77,791,000 77,791,000
Common stock, outstanding (in shares) 77,791,000 77,791,000