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Note 10 - Loss per Basic and Diluted Weighted Average Common Share Outstanding for Continuing and Discontinued Operations (Details) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income (loss) from continuing operations $ (1,515) $ 5,858 $ (15,695) $ 7,829
Loss on discontinued operations (837) (11,720)
Net income (loss) $ (1,515) $ 5,021 $ (15,695) $ (3,891)
Basic weighted-average common shares outstanding (in shares) 9,565 9,519 9,558 9,513
Effect of potentially dilutive common shares (1) (in shares) [1] 97 82
Diluted (in shares) 9,565 9,616 9,558 9,595
Basic income (loss) per share        
Continuing operations (in dollars per share) $ (0.16) $ 0.62 $ (1.64) $ 0.82
Discontinued operations (in dollars per share) (0.09) (1.23)
Total (in dollars per share) $ (0.16) 0.53 $ (1.64) (0.41)
Diluted income (loss) per share        
Continuing operations (in dollars per share) $ (0.16) 0.61 $ (1.64) 0.82
Discontinued operations (in dollars per share) (0.09) (1.23)
Total (in dollars per share) $ (0.16) $ 0.52 $ (1.64) $ (0.41)
[1] Represents the effect of the assumed exercise of stock options and the vesting of restricted stock units and performance stock awards, based on the treasury stock method.