Note 11 - Stock-Based Compensation (Details) - Phantom Stock Plan: (USD $)	12 Months Ended
	Dec. 31, 2013
Phantom Stock Plan: [Abstract]
Shares	50,067
Fair Value	$ 15.34
Vested at December 31, 2013	59,200
Vested at December 31, 2013	$ 20.70
Granted	9,832
Granted	$ 15.93
Forfeited	(46)
Forfeited	$ 19.90
Distributions	(530)
Distributions	$ 16.47
Shares	59,323
Fair Value	$ 20.70