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The Business - Financial Information (Details) - Subsequent Event [Member] - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Feb. 29, 2016
Dec. 31, 2016
Mar. 31, 2016
Mar. 10, 2016
Subsequent Event [Line Items]        
Share Price $ 1.00     $ 0.705
Number of consecutive days, share price under $1.00 30 days      
Number of consecutive trading days, required above $1.00, to not be delisted 10 days      
Period in which to meet consecutive trading day threshold to not be delisted 180 days      
Number of days after the initial period to meet consecutive trading day requirement to not be delisted 180 days      
PCT Allendale, LLC [Member]        
Subsequent Event [Line Items]        
Purchase Obligation     $ 4.4  
Hitachi Chemical Co., LTD [Member]        
Subsequent Event [Line Items]        
Proceeds From Licensing Agreements   $ 25.0    
Hitachi Chemical Co., LTD [Member] | PCT Allendale, LLC [Member]        
Subsequent Event [Line Items]        
Proceeds From Licensing Agreements   10.0    
Hitachi Chemical Co., LTD [Member] | Caladrius Biosciences, Inc. [Member]        
Subsequent Event [Line Items]        
Proceeds From Licensing Agreements   $ 15.0