Note 17 - Quarterly Results of Operations (Unaudited) - Quarterly Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
[1] | Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
[2] | Mar. 31, 2015 |
[3] | Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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Revenues | $ 190,978 | $ 164,500 | $ 158,832 | $ 156,341 | $ 208,061 | $ 173,512 | $ 175,451 | $ 167,216 | $ 670,651 | $ 724,240 | $ 718,980 | |||||||||
Operating income (loss) | 12,267 | 5,446 | 7,316 | 7,418 | 24,336 | 14,629 | 18,774 | 10,043 | 32,447 | 67,782 | 39,646 | |||||||||
Net income | $ 5,982 | $ 2,869 | $ 3,632 | $ 4,352 | $ 13,230 | $ 7,627 | $ 11,001 | $ 10,227 | $ 16,835 | $ 42,085 | $ 17,808 | |||||||||
Basic income per share (in dollars per share) | $ 0.33 | $ 0.16 | $ 0.20 | $ 0.21 | $ 0.74 | $ 0.42 | $ 0.60 | $ 0.56 | $ 0.93 | $ 2.32 | $ 1.17 | |||||||||
Diluted income per share (in dollars per share) | $ 0.33 | $ 0.16 | $ 0.20 | $ 0.21 | $ 0.72 | $ 0.42 | $ 0.60 | $ 0.56 | $ 0.92 | $ 2.30 | $ 1.15 | |||||||||
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