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Note 12 - Interest and Finance Costs - Summary of Interest and Finance Costs (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Interest on debt (including $874, $928 and $0, respectively, to related party) $ 16,033 $ 16,586 $ 7,373
Bank charges and loan commitment fees (including $179, $20 and $0, respectively, to related party) 233 282 262
Amortization and write-off of financing fees 6,311 1,812 1,305
Amortization of debt discount 0 324 2,504
Total 22,577 19,004 11,444
Less interest capitalized (1,621) (927) (1,782)
Total $ 20,956 $ 18,077 $ 9,662