v3.26.1
Revenue Recognition (Tables)
 12 Months Ended
Dec. 31, 2025
Schedule of Disaggregation of Revenue [Abstract]  
Schedule of Disaggregation of Revenue

Revenue by Contract Type (in thousands)

 

   Year Ended
December 31,		 
   2025   2024 
Grant revenue  $2,309   $5,756 
Remediation, administrative and consulting services and other revenue   3,827    1,297 
Total revenue by contract type  $6,136   $7,053 

 

Revenue by Generator (in thousands)

 

   Year Ended December 31, 
   2025   2024 
   Domestic   Foreign   Domestic   Foreign 
Domestic government  $5,592   $
-
   $6,481   $
-
 
Domestic commercial   298    
-
    45    
-
 
Foreign government   
-
    222    
-
    501 
Foreign commercial   
-
    24    
-
    26 
Total  $5,890   $246   $6,526   $527 
Schedule of Changes in Contract Assets

Contract Assets (in thousands) 

 

   Amount 
Balance as of January 1, 2023  $346 
Add: Revenue earned but not yet billed   2,420 
Less: Billed and transferred to receivables   (2,655)
Balance as of December 31, 2024  $111 
Add: Revenue earned but not yet billed   4,112 
Less: Billed and transferred to receivables   (3,948)
Balance as of December 31, 2025  $275 
Schedule of Allowances for Credit Losses

An allowance of $118 thousand and $128 thousand has been recorded as of December 31, 2025 and December 31, 2024, respectively.

 

   Amount 
Balance, January 1, 2023  $149 
Add: Additions   
-
 
Less: Write-offs and Recoveries   (21)
Balance, December 31, 2024  $128 
Add: Additions   33 
Less: Write-offs and Recoveries   (43)
Balance, December 31, 2025  $118