Quarterly report pursuant to Section 13 or 15(d)

Note 14 - Commitments - Lease Expense (Details)

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Note 14 - Commitments - Lease Expense (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Cash paid for operating lease liabilities $ 31,303 $ 30,820 $ 62,606 $ 48,084
Cash paid for finance lease liabilities 2,685 2,685 5,370 4,937
Right-of-use assets obtained in exchange for new operating lease liabilities (1) [1] 0 0 0 (663,009)
Property and equipment obtained in exchange for new finance lease liabilities $ 0 $ 0 $ 0 $ (43,242)
Weighted-average remaining lease term - operating leases (years) (Year) 5 years 9 months 18 days 6 years 9 months 18 days 5 years 9 months 18 days 6 years 9 months 18 days
Weighted-average remaining lease term- finance leases (years) (Year) 3 years 7 months 6 days 4 years 7 months 6 days 3 years 7 months 6 days 4 years 7 months 6 days
[1] For the six months ended June 30, 2021, the balance includes operating leases existing as of the adoption of ASC 842 on January 1, 2021