Note 5 - Stockholders' Equity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended
	Jun. 30, 2014	Aug. 31, 2013
Disclosure Text Block Supplement [Abstract]
Stock Issued During Period, Shares, New Issues		4,600
Share Price	$ 10.00	$ 4.40
Stock Issued During Period, Shares for Over Allotment Option Exercised by Underwriter	1,500	600
Proceeds from Issuance or Sale of Equity	$ 106,600	$ 18,500
Stock Issued During Period, Value, New Issues	$ 11,500