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Discontinued Operations - Summary of Business Consideration to Calculation of the Loss on Sale (Details) - Discontinued Operations Disposed of By Sale [Member] - Cell Therapy Business [Member]
$ in Thousands
Apr. 25, 2019
USD ($)
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]  
Consideration received $ 7,000
Transaction costs (1,363)
Net cash proceeds 5,637
Carrying value of business and assets sold 12,145
Net loss on sale of business $ (6,508)