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(Benefit) Provision for Income Taxes (Schedule of Deferred Tax Assets And Liabilities) (Details) - USD ($) | Jun. 30, 2021 | Jun. 30, 2020
--- | --- | ---
Deferred tax assets: |  |
Accrued expenses | $ 186,339 | $ 171,880
ESOP | 2,190 |
Stock-based compensation | 59,659 | 56,280
Inventory - effect of uniform capitalization | 46,197 | 74,352
Other |  | 1,437
Total deferred tax assets | 294,385 | 303,949
Deferred tax liability: |  |
Property, plant and equipment - principally due to differences in depreciation methods | 422,771 | 503,009
Prepaid expenses | 40,171 | 33,893
Total deferred tax liability | 462,942 | 536,902
Net deferred tax liability | $ (168,557) | $ (232,953)

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