v3.26.1
INCOME TAXES (Effective Income Tax Rate Reconciliation) (Details) - USD ($)
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
INCOME TAXES [Abstract]    
Federal income tax benefit at statutory rate, Amount $ (79,920) $ (171,882)
State income tax liability, net of federal income tax effect. Amount 8,000 (28,359)
Increase in federal valuation allowance, Amount 109,251 207,876
Stock option (deduction), Amount 2,515 (152,407)
Tax-exempt increase in officer life insurance cash surrender value, Amount (51,129) (52,603)
All other nontaxable or nondeductible items, Amount 4,783 5,565
R&D credit, Amount (1,841) (6,999)
Deferred adjustment related to payroll tax withholding on disqualifying disposition of incentive stock options, Amount   33,665
State tax rate change, Amount   43,812
Uncertain tax position, Amount 2,278 4,279
Decrease in deferred tax assets due to expired options, Amount 24,374  
Decrease in deferred tax assets due to state net operating loss, Amount   119,059
Other, Amount (7,419) 15,476
Total income tax provision, Amount $ 10,892 $ 17,482
Federal income tax benefit at statutory rate, Percent 21.00% 21.00%
State income tax liability, net of federal income tax effect. Percent (2.10%) 3.50%
Increase in federal valuation allowance, Percent (28.70%) (25.40%)
Stock option (deduction), Percent (0.70%) 18.60%
Tax-exempt increase in officer life insurance cash surrender value, Percent 13.40% 6.40%
All other nontaxable or nondeductible items, Percent (1.30%) (0.70%)
R&D credit, Percent 0.50% 0.90%
Deferred adjustment related to payroll tax withholding on disqualifying disposition of incentive stock options, Percent   (4.10%)
State tax rate change, Percent   (5.30%)
Uncertain tax position, Percent (0.60%) (0.50%)
Decrease in deferred tax assets due to expired options, Percent (6.40%)  
Decrease in deferred tax assets due to state net operating loss, Percent   (14.50%)
Other, Percent 2.00% (1.90%)
Total income tax provision, Percent (2.90%) (2.00%)
Tax Jurisdiction of Domicile [Extensible Enumeration] Domestic Country [Member] Domestic Country [Member]