Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Allowance for credit loss $ 764 $ 764
Undesignated preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Undesignated preferred stock, authorized (in shares) 32,659,235 32,659,235
Undesignated preferred stock, issued (in shares) 0 0
Undesignated preferred stock, outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, authorized (in shares) 700,000,000 700,000,000
Common stock, issued (in shares) 380,338,790 375,126,352
Common stock, outstanding (in shares) 380,338,790 375,126,352
Series B Convertible Preferred Stock    
Convertible preferred stock, par value (dollars per share) $ 0.001 $ 0.001
Convertible preferred stock, authorized (in shares) 4,908,333 4,908,333
Convertible preferred stock, issued (in shares) 4,908,333 4,908,333
Convertible preferred stock, outstanding (in shares) 4,908,333 4,908,333
Series C Convertible Preferred Stock    
Convertible preferred stock, par value (dollars per share) $ 0.001 $ 0.001
Convertible preferred stock, authorized (in shares) 12,432,432 12,432,432
Convertible preferred stock, issued (in shares) 1,155,274 1,155,274
Convertible preferred stock, outstanding (in shares) 1,155,274 1,155,274