Note 10 - Other Borrowings (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 10 - Other Borrowings (Details) [Line Items]
Short-term Debt	$ 2,361,000	$ 422,000
Line of Credit Facility Limit Percentage	15.00%
Line of Credit [Member]
Note 10 - Other Borrowings (Details) [Line Items]
Short-term Debt	$ 1,602,000	237,000
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Note 10 - Other Borrowings (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.25%
Guidance Line of Credit [Member]
Note 10 - Other Borrowings (Details) [Line Items]
Short-term Debt	$ 0	0
Line of Credit Facility, Maximum Borrowing Capacity	8,000,000
Federal Funds Line of Credit [Member]
Note 10 - Other Borrowings (Details) [Line Items]
Short-term Debt	0	$ 0
Line of Credit Facility, Maximum Borrowing Capacity	$ 18,500,000
Minimum [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Note 10 - Other Borrowings (Details) [Line Items]
Line of Credit Facility, Interest Rate at Period End	1.00%