Note 12 - Common Stock (Details) - USD ($) $ in Millions	Jun. 30, 2015	Mar. 04, 2014	Dec. 31, 2012
Capital Stock Disclosure [Abstract]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			850,000
Percent of Oustanding Stock			5.00%
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	154,136
Shelf Registration Statement Max Capital Allowed to Raise (in Dollars)		$ 300