v3.25.2
Note 2 - Summary of Significant Accounting Policies and Recently Issued Accounting Pronouncements (Details Textual)
3 Months Ended 6 Months Ended 11 Months Ended
Jun. 30, 2025
USD ($)
$ / shares
Jun. 30, 2024
Jun. 30, 2025
USD ($)
$ / shares
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
$ / shares
Dec. 31, 2024
USD ($)
$ / shares
Jul. 31, 2024
USD ($)
Number of Operating Segments     2        
Accounts Receivable, Allowance for Credit Loss $ 0   $ 0   $ 0    
Prepaid Expense, Noncurrent 767,000   767,000   767,000 $ 904,000 $ 1,200,000
Increase (Decrease) in Prepaid Long Term Contracts     (137,000) $ (222,000) 500,000    
Contract with Customer, Liability, Current $ 149,000   $ 149,000   $ 149,000 $ 0  
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares $ 0.01   $ 0.01   $ 0.01 $ 0.01  
Customer Concentration Risk [Member] | Health Regen [Member] | Revenue Benchmark [Member]              
Concentration Risk, Percentage 98.00%   97.00%        
Customer Concentration Risk [Member] | Health Regen [Member] | Accounts Receivable [Member]              
Concentration Risk, Percentage   0.00%          
Clinical Activity Trials [Member]              
Prepaid Expense, Noncurrent $ 700,000   $ 700,000   $ 700,000    
Other Deposits [Member]              
Prepaid Expense, Noncurrent $ 100,000   $ 100,000   $ 100,000