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Provision (benefit) for Income Taxes (Schedule of Deferred Tax Assets And Liabilities) (Details) - USD ($)
Jun. 30, 2022
Jun. 30, 2021
Deferred tax assets:    
Accrued expenses $ 204,774 $ 186,339
ESOP 14,237 2,190
Stock-based compensation 33,719 59,659
Inventory - effect of uniform capitalization 46,197
Total deferred tax assets 252,730 294,385
Deferred tax liability:    
Property, plant and equipment - principally due to differences in depreciation methods 374,566 422,771
Inventory - effect of uniform capitalization 19,276
Prepaid expenses 36,716 40,171
Total deferred tax liability 430,558 462,942
Net deferred tax liability $ (177,828) $ (168,557)