Note 17 - Subsequent Events (Details Textual) - USD ($)			3 Months Ended
	Feb. 17, 2016	Jan. 25, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans Payable [Member] | Subsequent Event [Member]
Debt Instrument, Term		5 years
Debt Maximum Borrowing Capacity		$ 85,000,000
Proceeds from Issuance of Long-term Debt	$ 85,000,000
Debt Instrument, Periodic Payment	1,000,000
Subordinated Debt [Member] | Subsequent Event [Member]
Debt Instrument, Term		5 years 182 days
Debt Maximum Borrowing Capacity	15,300,000	$ 15,000,000
Proceeds from Issuance of Subordinated Long-term Debt	$ 15,300,000
Subsequent Event [Member] | Revolving Credit Facility [Member]
Debt Instrument, Term		5 years
Line of Credit Facility, Maximum Borrowing Capacity		$ 5,000,000
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 5,000,000	$ 5,000,000
Scenario, Forecast [Member]
Gains (Losses) on Extinguishment of Debt, before Write off of Deferred Debt Issuance Cost			$ (211,000)
Long-term Debt, Current Maturities				3,000,000	6,665,000
Long-term Debt, Excluding Current Maturities				$ 97,052,000	$ 105,470,000