Note 13 - Employee Benefit Plans (Details) - Restricted Stock - $ / shares	1 Months Ended	12 Months Ended
	Jan. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Note 13 - Employee Benefit Plans (Details) - Restricted Stock [Line Items]
Granted weighted average grant-date price	$ 7.00
Restricted Stock [Member]
Note 13 - Employee Benefit Plans (Details) - Restricted Stock [Line Items]
Balance of shares non-vested as of January 1, 2013	27,313	30,503	27,629	27,313
Balance of shares non-vested as of January 1, 2013	$ 7.30	$ 10.26	$ 7.39	$ 7.30
Balance		43,477	30,503	27,629
Balance weighted average grant-date price		$ 12.75	$ 10.26	$ 7.39
Granted		28,951	34,562	17,326
Granted weighted average grant-date price		$ 14.78	$ 10.99	$ 7.17
Vested		(15,083)	(31,688)	(16,576)
Vested weighted average grant-date price		$ 11.64	$ 8.55	$ 7.00
Forfeited		(894)	0	(434)
Forfeited weighted average grant-date price		$ 12.26	$ 0	$ 7.25