Note 14 - Stockholders' Equity (Details) - Common Stock Issuance (USD $) In Thousands, unless otherwise specified	0 Months Ended				9 Months Ended
	Apr. 07, 2014		Jan. 10, 2014		Sep. 30, 2014	Sep. 30, 2013
Common Stock Issuance [Abstract]
Shares issued	14,950		11,500
Net proceeds	$ 109,916	[1]	$ 75,846	[1]	$ 186,081	$ 98,172

[1] Proceeds are net of underwriting costs and offering expenses paid by the Company.