v3.26.3
Note 10 - Income Taxes (Tables)
12 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
  

Year Ended June 30,

 

(In thousands)

 

2026

  

2025

 

Current

        

Federal

 $—  $— 

State and local

  (3)  (2)

Total current tax benefit/ (expense)

 $(3) $(2)

Deferred

        

Federal

  (1)  — 

State and local

  —   — 

Total deferred tax benefit/ (expense)

 $(1) $— 

Total tax benefit/ (expense)

 $(4) $(2)
Schedule of Income Taxes Paid [Table Text Block]
(In thousands) 2026   
Domestic      
Federal $—   
States      
Massachusetts $3   
Other  1   
Foreign  —   
Total  $4   
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Reconciliation of Income Tax Expense (Benefit) at the U.S. Federal Statutory Rate to Income Tax Expense (Benefit) Year Ended June 30, 
  2026 
  

Amount

  Percent 
Tax at Federal Statutory Rate  (3,029)  21%
         

State and local income tax, net of federal (national) income tax effect(1)

  3   (0.02)%
         

Foreign tax effects:

  N/A   0.0%
         

Effect of cross-border tax laws

  N/A   0.0%
         

Tax credits

        

Federal R&D Credit

  (187)  1.30%
         

Changes in valuation allowances

  2,973   (20.62)%
         

Nontaxable or nondeductible items

  69   (0.48)%
         

Changes in unrecognized tax benefits (report all jurisdictions)

  N/A   0.0%
         

Other adjustments

        

Expiration of NOL and Charitable Contribution C/O

  264   (1.83)%
       Other  (89)  0.62%

Provision (Benefit) for Income Taxes

  4   (0.03)%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
  

Year Ended June 30,

 

(In thousands)

 

2026

  

2025

 

Deferred tax assets:

        

Net operating loss carryforwards

 $24,226  $20,975 

Tax credit carryforwards

  2,363   2,166 

Lease liability - current and non-current

  485   563 

Unrealized loss on securities

  67   182 

IRC Section 174 R&D Expense Capitalization

  2,130   2,952 

Accrued expenses and other timing

  351   126 

Stock-based compensation

  219   112 

Total gross deferred tax assets

 $29,841  $27,076 

Less — valuation allowance

  (29,356)  (26,482)

Net deferred tax assets

 $485  $594 

Deferred tax liabilities:

        

Right-of-use assets

 $(385) $(468)

Property and equipment, principally due to differences in depreciation

  (101)  (126)

Total gross deferred tax liabilities

  (486)  (594)

Net deferred tax assets

 $(1) $— 
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
  

Year Ended June 30,

 

(In thousands)

 

2026

  

2025

 

Fiscal year beginning balance

 $762  $604 

Additions for tax positions of current period

  86   157 

Additions for tax positions of prior years

  —   1 

Decreases for tax positions of prior years

  —   — 

Fiscal year ending balance

 $848  $762 
Income Tax Jurisdiction, Domestic Federal, State, and Local [Member]  
Notes Tables  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Reconciliation of Income Tax Expense (Benefit) at the U.S. Federal Statutory Rate to Income Tax Expense (Benefit) 

 

 
     Year Ended June 30, 

(In thousands)

    

2025

 

Expected benefit

     $2,908 

State tax expense

      (2)

Tax credits

      347 

Change in valuation allowance

      (3,127)

Stock-based compensation

      (118)

Prior year true-up

      — 

Expiration of net operating loss carryovers

      (1)

Other permanent items

      (9)

Total income tax benefit/ (expense)

     $(2)