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Note 1 - Loss per Basic and Diluted Weighted Average Common Share Outstanding for Continuing and Discontinued Operations (Details) - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income (loss) from continuing operations $ (29,388) $ (6,173) $ 21,676
Loss from discontinued operations (11,714) (22,599)
Net loss $ (29,388) $ (17,887) $ (923)
Basic weighted-average common shares outstanding (in shares) 9,560 9,515 9,445
Effect of potentially dilutive common shares(1) (in shares) [1] 89
Diluted weighted-average common shares outstanding (in shares) 9,560 9,515 9,534
Earnings (loss) per basic common share:      
Continuing operations (in dollars per share) $ (3.07) $ (0.65) $ 2.29
Discontinued operations (in dollars per share) (1.23) (2.39)
Total (in dollars per share) $ (3.07) (1.88) (0.10)
Earnings (loss) per diluted common share:      
Continuing operations (in dollars per share) $ (3.07) (0.65) 2.27
Discontinued operations (in dollars per share) (1.23) (2.37)
Total (in dollars per share) $ (3.07) $ (1.88) $ (0.10)
Antidilutive shares excluded from net earnings per diluted common share calculation (in shares) 52 65 93
[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.