Note 11 - Leases - Maturities of Lease Liabilities (Details)	Mar. 31, 2020 USD ($)
2020, operating leases	$ 718,464
2020, finance leases	211,198
2021, operating leases	1,457,535
2021, finance leases	266,178
2022, operating leases	1,485,072
2022, finance leases	233,461
2023, operating leases	1,386,873
2023, finance leases	219,396
2024, operating leases	819,018
2024, finance leases	181,237
Thereafter, operating leases	151,895
Thereafter, finance leases	21,936
Total lease payments, operating leases	6,018,857
Total lease payments, finance leases	1,133,406
Less imputed interest, operating leases	624,782
Less imputed interest, finance leases	107,558
Total, operating leases	5,394,075
Total, finance leases	$ 1,025,848