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Income Taxes (Details 3) - USD ($)
Jun. 30, 2023
Jun. 30, 2022
Deferred tax assets:    
Net operating loss and credit carryforwards $ 9,243,000 $ 12,197,277
Stock-based compensation 340,000 536,000
R&D and other credits 1,787,000 2,279,000
Capitalized R&D expenses 763,000 371,000
Inventories 200,000 263,973
Accrued expenses and other 15,000 267,000
Gross deferred tax assets 12,348,000 15,914,250
Valuation allowance for deferred tax assets (11,057,000) (14,388,277)
Total deferred tax assets 1,291,000 1,525,973
Deferred tax liabilities:    
Depreciation and other (740,000) (763,988)
Intangible assets (876,000) (1,160,000)
Total deferred tax liabilities (1,616,000) (1,923,988)
Net deferred tax asset $ (325,000) $ (398,015)