XML 90 R72.htm IDEA: XBRL DOCUMENT v3.20.4
Commitments And Contingencies (Narrative) (Details) - USD ($)
Sep. 28, 2010
Dec. 31, 2020
Dec. 31, 2019
Other Commitments [Line Items]      
Unreported loss liability   $ 1,900,000 $ 1,900,000
Recoverable insurance amounts   974,000 935,000
Property and equipment, net   33,077,000 $ 32,150,000
PerClot [Member]      
Other Commitments [Line Items]      
Prepaid royalties   1,500,000  
Net intangible assets   1,800,000  
Property and equipment, net   1,200,000  
Maximum [Member]      
Other Commitments [Line Items]      
Estimated loss   4,000,000.0  
Starch Technology Purchase [Member]      
Other Commitments [Line Items]      
Term of distribution agreement 15 years    
Expected future contingent payment amounts   $ 1,000,000.0