Note 8 - Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Text Block [Abstract]
Finite-Lived Intangible Assets, Net	$ 31,933,000	$ 35,492,000
Finite-Lived Intangible Assets, Accumulated Amortization	31,890,000	28,654,000
Amortization of Intangible Assets	$ 3,280,000	$ 3,289,000	$ 3,279,000