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Provision for Income Taxes (Schedule of Deferred Tax Assets And Liabilities) (Details) - USD ($) | Jun. 30, 2020 | Jun. 30, 2019
--- | --- | ---
Deferred tax assets: |  |
Accrued expenses | $ 171,880 | $ 164,388
ESOP |  | 17,702
Stock-based compensation | 56,280 | 56,382
Inventory - effect of uniform capitalization | 74,352 | 64,148
Other | 1,437 | 1,437
Total deferred tax assets | 303,949 | 304,057
Deferred tax liability: |  |
Property, plant and equipment - principally due to differences in depreciation methods | 503,009 | 541,150
Prepaid expenses | 33,893 | 39,982
Total deferred tax liability | 536,902 | 581,132
Net deferred tax liability | $ (232,953) | $ (277,075)

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