XML 37 R27.htm IDEA: XBRL DOCUMENT v3.25.1
Note 4 - Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Schedule of Intangible Assets and Goodwill [Table Text Block]
  March 31,  December 31, 

(in thousands)

 

2025

  

2024

 
         

Istaroxime drug candidate

 $22,340  $22,340 

Rostafuroxin drug candidate

  1,790   1,790 

Intangible assets

 $24,130  $24,130