Note 13 - Stock Based Compensation (Details) - Stock Option Activity - 2005 Stock Option Plan [Member] $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Note 13 - Stock Based Compensation (Details) - Stock Option Activity [Line Items]
Balance at December 31, 2014 | shares	549,560
Balance at December 31, 2014 | $ / shares	$ 8.61
Forfeited | shares	(3,100)
Forfeited | $ / shares	$ 7.76
Balance at December 31, 2015 | shares	546,460
Balance at December 31, 2015 | $ / shares	$ 8.62
Balance at December 31, 2015	3 years 21 days
Balance at December 31, 2015 | $	$ 0	[1]
Exercisable at December 31, 2015 | shares	437,793
Exercisable at December 31, 2015 | $ / shares	$ 9.04
Exercisable at December 31, 2015	1 year 215 days
Exercisable at December 31, 2015 | $	$ 0	[1]

[1] The aggregate intrinsic value of a stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on December 31, 2015.