v3.25.2
Note 2 - Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2025
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
  

For the Three Months Ended

  

For the Six Months Ended

 
  

June 30,

  

June 30,

 
  

2025

  

2024

  

2025

  

2024

 

Revenues

 $212  $93  $355  $175 

Less:

                

Cost of revenues

  14   16   25   21 

Acquired in-process research and development expense

  1,848      1,967    

Depreciation and amortization expense

  529   526   1,060   1,048 

Stock-based compensation expense

  98   13   189   19 

Salaries and benefits expense

  1,310   1,060   2,624   1,721 

Professional fees

  317   374   1,044   1,046 

Research and development expense

  155   81   258   118 

Interest income

  (3)  (7)  (21)  (40)

Interest expense

  67   5   116   8 

Change in fair value of royalties payable due to related parties

  1,667   1,504   2,830   1,590 

Change in fair value of trading debt securities

  (10)     (10)   

Income tax benefit

  (950)     (1,674)   

Other segment items (1)

  628   741   1,450   1,539 

Segment net loss

  (5,458)  (4,220)  (9,503)  (6,895)
                 

Reconciliation of net loss

                

Adjustments and reconciling items

            

Consolidated net loss

 $(5,458) $(4,220) $(9,503) $(6,895)
Fair Value, by Balance Sheet Grouping [Table Text Block]
      

June 30, 2025

     
  

Total

  

Level 1

  

Level 2

  

Level 3

 

Assets:

                

Cash Equivalents

                

Mutual funds

 $629  $629  $  $ 

Money market funds

  115   115       

Trading debt securities

  874         874 

Total assets

 $1,618  $744  $  $874 
                 

Liabilities:

                

Current portion of royalties payable due to related parties

 $497  $  $  $497 

Royalties payable due to related parties

 $11,546  $  $  $11,546 

Total liabilities

 $12,043  $  $  $12,043 
      

December 31, 2024

     
  

Total

  

Level 1

  

Level 2

  

Level 3

 

Assets:

                

Cash Equivalents

                

Mutual funds

 $2,803  $2,803  $  $ 

Money market funds

  12   12       

Total assets

 $2,815  $2,815  $  $ 
                 

Liabilities:

                

Current portion of royalties payable due to related parties

 $145  $  $  $145 

Royalties payable due to related parties

 $9,068  $  $  $9,068 

Total liabilities

 $9,213  $  $  $9,213 
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  

Fair Value Measurements Using Significant Unobservable Inputs (Level 3)

 
  

Royalties Payable due to Related Parties

  

Trading Debt Securities

 

Balance at January 1, 2025

 $9,213  $ 

Change in fair value

  1,163    

Balance at March 31, 2025

  10,376    

Purchased

     864 

Change in fair value

  1,667   10 

Balance at June 30, 2025

 $12,043  $874 
  

Fair Value Measurements Using Significant Unobservable Inputs (Level 3)

 
  

Royalties Payable due to Related Parties

  

Trading Debt Securities

 

Balance at January 1, 2024

 $6,974  $ 

Change in fair value

  86    

Balance at March 31, 2024

  7,060    

Change in fair value

  1,504    

Balance at June 30, 2024

 $8,564  $ 
Schedule of Property, Plant and Equipment, Useful Life [Table Text Block]

Machinery and equipment

  2 - 5 years 

Computer hardware and software

  1 - 5 years 

LockeT animation video

  3 years 

VIVO DEMO/Clinical Systems

  1-5 years 
Disaggregation of Revenue [Table Text Block]
  

For the Three Months Ended June 30,

  

For the Six Months Ended June 30,

 
  

2025

  

2024

  

2025

  

2024

 

Product sales

                

US

 $173  $60  $308  $67 

Europe

  39   33   47   108 

Total product sales

 $212  $93  $355  $175 
Royalties Payable [Member]  
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

June 30, 2025

 

Instrument

Valuation Technique

Unobservable Input

 

Input Range

 

Royalties payable due to related parties

Discounted future cash flows

Revenue adjusted discount rate

  20.5%

Trading debt securities

Probability weighted expected return

Recovery rate

  60.0%
  

Simulated conversion price

 $0.67 
  

Credit risk-adjusted discount rate

  13.7%
  

Expected equity volatility

  91.8%
  

Probability of conversion

  29.3%
  

Probability of payment

  70.7%
  

Expected term for conversion (years)

  1.6 
  

Expected term for payment (years)

  5.0 

December 31, 2024

 

Instrument

Valuation Technique

Unobservable Input

 

Input Range

 

Royalties payable due to related parties

Discounted future cash flows

Revenue adjusted discount rate

  22.5%