Note 4 - Loans/Leases Receivable (Details) - Concentration by Industries - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Note 4 - Loans/Leases Receivable (Details) - Concentration by Industries [Line Items]
Balance	$ 1,798,022,675	$ 1,630,003,070
Lessors of Non-residential Buildings [Member]
Note 4 - Loans/Leases Receivable (Details) - Concentration by Industries [Line Items]
Balance	$ 311,138,005	$ 256,436,213
Percentage of Total Loans/Leases	17.00%	16.00%
Lessors of Residential Buildings [Member]
Note 4 - Loans/Leases Receivable (Details) - Concentration by Industries [Line Items]
Balance	$ 91,811,101	$ 74,667,674
Percentage of Total Loans/Leases	5.00%	5.00%
Bank Holding Companies [Member]
Note 4 - Loans/Leases Receivable (Details) - Concentration by Industries [Line Items]
Balance	$ 55,840,984	$ 60,910,570
Percentage of Total Loans/Leases	3.00%	4.00%