v3.26.1
Note 2 - Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Cash and Cash Equivalents [Table Text Block]
  

June 30, 2026

  

December 31, 2025

 

BioLargo, Inc. and subsidiaries

 $1,725  $2,826 

Clyra Medical Technologies, Inc.

  463   1,057 

Total

 $2,188  $3,883 
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 
  

2026

  

2025

  

2026

  

2025

 

Customer A

  15%  % 

18

%  %

Customer B

  13%  % 

13

%  %

Customer C

  13%  % 

15

%  %

Customer D

  %  57% 

%  69%
  

June 30, 2026

  

December 31, 2025

 

Customer A

  26%  %

Customer B

  15%  %

Customer E

  11%  %
Schedule of Inventory, Current [Table Text Block]
  

June 30, 2026

  

December 31, 2025

 

Raw material

 $103  $125 

Finished goods

  200   185 

Total

 $303  $310 
Schedule of Other Assets, Noncurrent [Table Text Block]
  

June 30, 2026

  

December 31, 2025

 

Patents

 $34  $34 

Security deposits

  72   72 

Interest receivable

  5    

Total

 $111  $106 
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
  

2026

  

2025

 
  

Non Plan

  

2024 Plan

  

Non Plan

  

2024 Plan

 

Risk free interest rate

     4.30 - 4.47%  4.23%  4.23 - 4.58%

Expected volatility

     84%  91%  90 - 91%

Expected dividend yield

            

Forfeiture rate

            

Life in years

     10   10   10 
Property, Plant, and Equipment [Table Text Block]
  

June 30, 2026

  

December 31, 2025

 

Equipment

 $1,916  $1,724 

Leasehold improvements

  526   526 

Total, at cost

  2,442   2,250 

Less: accumulated depreciation

  (674)  (607)

Total equipment and leasehold improvements, net

 $1,768  $1,643