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Schedule of Components of Inventory (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Accounting Policies [Abstract]    
Diagnostic services testing material $ 2,989 $ 1,028
Raw materials 1,514 1,550
Work in process 260 440
Finished goods 272 188
Inventory 5,035 3,206
Inventory valuation reserve (435) (167)
Inventory, net $ 4,600 $ 3,039