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Consolidated Statements of Operations - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Total revenues $ 237,277 $ 222,608 $ 78,696
Total cost of revenues 133,404 126,031 42,362
Gross margin 103,873 96,577 36,334
Operating costs and expenses:      
Selling, general and administrative 120,055 97,563 56,860
Engineering and development 15,722 16,843 9,484
Total operating costs and expenses 135,777 114,406 66,344
Loss from operations (31,904) (17,829) (30,010)
Other income (expense):      
Investment income 8,474 3,253 761
Interest expense (6,142) (4,689) (2,560)
Loss on debt extinguishment   (251,754) 0
Other income (expense), net (5,522) (2,823) (929)
Total other expense, net (3,190) (256,013) (2,728)
Loss before provision for income taxes (35,094) (273,842) (32,738)
(Provision for) benefit from income taxes (2,239) (1,686) 45
Net loss (37,333) (275,528) (32,693)
Deemed dividend on Series C convertible preferred stock     (39,492)
Paid-in-kind dividend on Series C convertible preferred stock (8,000) (8,196) (2,844)
Net loss attributable to common stockholders $ (45,333) $ (283,724) $ (75,029)
Net loss per share - basic $ (0.93) $ (6.18) $ (1.94)
Net loss per share - diluted $ (0.93) $ (6.18) $ (1.94)
Weighted average shares outstanding - basic 48,987,295 45,927,591 38,582,432
Weighted average shares outstanding - diluted 48,987,295 45,927,591 38,582,432
Service      
Total revenues $ 133,879 $ 119,065 $ 55,299
Total cost of revenues 75,187 69,297 29,521
Product      
Total revenues 103,398 103,543 23,397
Total cost of revenues $ 58,217 $ 56,734 $ 12,841