Note 3 - Loans/Leases Receivable (Details) - Delinquency Status (USD $)	Mar. 31, 2015		Dec. 31, 2014
Finance Leases Portfolio Segment [Member] | Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	$ 166,120,813	[1]	$ 164,693,144	[1]
Finance Leases Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	1,123,198	[1]	1,339,272	[1]
Finance Leases Portfolio Segment [Member] | Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	167,244,011	[1]	166,032,416	[1]
Residential Portfolio Segment [Member] | Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	161,893,294	[1]	156,818,091	[1]
Residential Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	1,846,567	[1]	1,814,401	[1]
Residential Portfolio Segment [Member] | Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	163,739,861	[1]	158,632,492	[1]
Consumer Portfolio Segment [Member] | Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	70,596,187	[1]	71,491,531	[1]
Consumer Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	1,306,389	[1]	1,114,949	[1]
Consumer Portfolio Segment [Member] | Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	71,902,576	[1]	72,606,480	[1]
Performing Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	398,610,294	[1]	393,002,766	[1]
Nonperforming Financing Receivable [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	4,276,154	[1]	4,268,622	[1]
Delinquent Loans [Member]
Note 3 - Loans/Leases Receivable (Details) - Delinquency Status [Line Items]
Delinquent loan status	$ 402,886,448	[1]	$ 397,271,388	[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.