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Note 10 - Leases - Operating Lease Liability Maturity (Details)
Mar. 31, 2019
USD ($)
2019 (remaining nine months) $ 124,231
2020 155,682
2021 127,425
2022 131,249
2023 89,226
2024 and thereafter
Total future lease payments 627,813
Less: imputed interest (70,368)
Total $ 557,445