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Note E - Leases (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Oct. 31, 2019 | Jun. 30, 2022
Finance Lease, Liability, Payment, Due, Total |  | $ 245,007
Operating Lease, Weighted Average Remaining Lease Term (Year) |  | 19 years 8 months 12 days
Finance Lease, Weighted Average Remaining Lease Term (Year) |  | 2 years 3 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent |  | 2.80%
Finance Lease, Weighted Average Discount Rate, Percent |  | 1.90%
Heavy-duty Forklift [Member] |  |
Lessee, Finance Lease, Term of Contract (Year) | 5 years |
Finance Lease, Liability, Payment, Due, Total | $ 518,616 |
Finance Lease, Monthly Payment | $ 9,074 |
Plateplus Inc. [Member] |  |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability |  | $ 1,237,097
Granite City, IL Facility [Member] |  |
Lessee, Operating Lease, Renewal Term (Year) |  | 20 years
Operating Lease, Quarterly Payments |  | $ 18,832
Granite City, IL Facility [Member] | Plateplus Inc. [Member] |  |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability |  | 1,237,097
Office Space in Longview, Texas [Member] |  |
Operating Lease, Monthly Payments |  | $ 4,878

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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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