v3.26.1
Note 6 - Accrued Expenses and Other Current Liabilities (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Accrued Liabilities and Other Current Liabilities [Table Text Block]
   

June 30,

   

December 31,

 
   

2026

   

2025

 

Accrued expenses

  $ 30     $ 34  

Accrued salaries and employee benefits

    385       524  

Accrued clinical trial costs

    268       256  

Grant liability

    474       471  

Customer deposits

    64       64  

Total

  $ 1,221     $ 1,349