XML 69 R59.htm IDEA: XBRL DOCUMENT v3.23.2
Note 13 - Litigation Settlement (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Apr. 06, 2023
Jan. 18, 2023
Jun. 10, 2022
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Mar. 31, 2022
Litigation Settlement, Expense       $ 0 $ (4,880) $ 0 $ 311    
Equity Securities, FV-NI, Unrealized Loss       $ 1,581 (0) $ 1,581 (0)    
Series E Preferred Stock in Biostage [Member]                  
Equity Securities without Readily Determinable Fair Value, Amount         3,900   $ 3,900    
Preferred Stock, Book Value, Inclusive of Accrued Dividends               $ 4,000  
Common Stock [Member] | Biostage [Member]                  
Investment Owned, Balance, Shares (in shares)       707,626   707,626      
Investment Owned, Fair Value       $ 2,600   $ 2,600      
Equity Securities, FV-NI, Unrealized Loss       $ 1,600          
Biostage [Member] | Private Placement [Member]                  
Conversion of Stock, Amount Issued $ 6,000                
Shares Issued, Price Per Share (in dollars per share) $ 6.00                
Biostage [Member] | Series E Convertible Preferred Stock into Common Stock [Member]                  
Conversion of Stock, Shares Converted (in shares)   200              
Conversion of Stock, Shares Issued (in shares)   31,933              
Convertible Preferred Stock [Member] | Biostage [Member]                  
Preferred Stock, Dividend Rate, Percentage             8.00%    
Preferred Stock, Convertible, Conversion Price (in dollars per share) $ 6.00                
Convertible Preferred Stock [Member] | Biostage [Member] | Private Placement [Member]                  
Preferred Stock, Mandatory Conversion, Minimum Qualified Offering Amount $ 4,000                
Case in Suffolk Superior Court [Member]                  
Loss Contingency, Estimate of Possible Loss                 $ 5,200
Litigation Settlement, Expense         $ (4,900)        
Case in Suffolk Superior Court [Member] | Convertible Preferred Stock [Member]                  
Stock Issued During Period, Shares, Issued For Settlement (in shares)     4,000            
Stock Issued During Period, Value, Issued for Settlement     $ 4,000