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Business Combinations - Summary of Adjustments in Unaudited Pro Forma Combined Net Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Business Acquisition [Line Items]        
Net loss $ (2,609) $ (736) $ (2,372) $ (1,938)
Add: Results of operations of acquired business 0 (205) (310) 566
Less: pro forma adjustments        
Amortization of historical intangibles 0 23 0 47
Amortization of acquired intangibles 0 (630) (38) (1,217)
Inventory fair value adjustments 0 0 353 (353)
Interest income 0 0 (6) 0
Interest expense 0 24 0 47
Net loss - pro forma combined $ (2,609) $ (1,524) $ (2,373) $ (2,848)