Note 3 - Loans/Leases Receivable (Details) - Delinquency Status (USD $)	Mar. 31, 2014		Dec. 31, 2013
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	$ 1,121,578,680		$ 1,103,441,058
Finance Leases Portfolio Segment [Member] | Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	138,672,682	[1]	128,006,984	[1]
Finance Leases Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	1,321,377	[1]	894,458	[1]
Finance Leases Portfolio Segment [Member] | Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	139,994,059	[1]	128,901,442	[1]
Residential Portfolio Segment [Member] | Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	147,106,609	[1]	145,345,719	[1]
Residential Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	1,843,608	[1]	2,010,604	[1]
Residential Portfolio Segment [Member] | Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	148,950,217	[1]	147,356,323	[1]
Consumer Portfolio Segment [Member] | Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	75,579,303	[1]	74,688,039	[1]
Consumer Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	1,230,237	[1]	1,345,771	[1]
Consumer Portfolio Segment [Member] | Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	76,809,540	[1]	76,033,810	[1]
Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	361,358,594	[1]	348,040,742	[1]
Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	4,395,222	[1]	4,250,833	[1]
Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent Loan Status	$ 365,753,816	[1]	$ 352,291,575	[1]

[1] Performing = loans/leases accruing and less than 90 days past due. Nonperforming = loans/leases on nonaccrual, accruing loans/leases that are greater than or equal to 90 days past due, and accruing troubled debt restructurings.