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Note 6 - Leasing Arrangements - Lease Expense (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Operating lease cost   $ 830,000 $ 804,000
Variable lease cost   0 0
Sublease income   (45,000) (45,000)
Total operating lease cost   785,000 759,000
Operating Lease – operating cash flows   (754,000) (645,000)
Operating lease additions $ 5,364 $ 5,364,000 $ 0
Weighted average remaining lease term – Operating leases (in months) (Year)   81 years 14 years
Weighted average discount rate – Operating leases 5.00% 5.00% 12.00%