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Note 19 - Equity Incentive Plans (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  |  | Weighted-Average |  |  | Weighted-Average Remaining Contractual |  |  | Aggregate Intrinsic Value |
|  | Shares |  |  | Exercise Price |  |  | Life (in years) |  |  | (in thousands) |
Balance, December 31, 2011 |  |  | 4,356,985 |  |  |  | 28.86 |  |  |  | 3.0 |  |  | $ | 37 |
Exercised |  |  | (50,024 | ) |  | $ | 15.27 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (310,331 | ) |  |  | 23.75 |  |  |  |  |  |  |  |  |
Balance, December 31, 2012 |  |  | 3,996,630 |  |  |  | 29.45 |  |  |  | 2.2 |  |  | $ | - |
Exercised |  |  | (594,946 | ) |  | $ | 24.80 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (588,810 | ) |  |  | 22.86 |  |  |  |  |  |  |  |  |
Balance, December 31, 2013 |  |  | 2,812,874 |  |  |  | 31.81 |  |  |  | 1.9 |  |  | $ | 2,119 |
Exercised |  |  | (5,500 | ) |  | $ | 23.37 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (474,470 | ) |  |  | 29.28 |  |  |  |  |  |  |  |  |
Balance, December 31, 2014 |  |  | 2,332,904 |  |  |  | 32.34 |  |  |  | 1.2 |  |  | $ | 1,388 |
Exercisable, December 31, 2014 |  |  | 2,332,904 |  |  | $ | 32.34 |  |  |  | 1.2 |  |  | $ | 1,388 |
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
|  |  |  | Outstanding |
|  |  |  |  |  |  |  | Weighted-Average |  |  |  |  |
|  |  |  |  |  |  |  | Remaining Contractual |  |  | Exercisable |
Exercise Price |  |  | Shares |  |  | Life (in Years) |  |  | Shares |
$ | 37.00 |  |  |  | 563,610 |  |  |  | 0.1 |  |  |  | 563,610 |
| 32.47 |  |  |  | 245,060 |  |  |  | 0.2 |  |  |  | 245,060 |
| 33.54 |  |  |  | 264,694 |  |  |  | 0.4 |  |  |  | 264,694 |
| 36.90 |  |  |  | 211,730 |  |  |  | 1.1 |  |  |  | 211,730 |
| 38.26 |  |  |  | 12,000 |  |  |  | 1.3 |  |  |  | 12,000 |
| 36.24 |  |  |  | 410,730 |  |  |  | 1.1 |  |  |  | 410,730 |
| 23.37 |  |  |  | 625,080 |  |  |  | 3.2 |  |  |  | 625,080 |
|  |  |  |  | 2,332,904 |  |  |  | 1.2 |  |  |  | 2,332,904 |
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] |
|  | Units |
Balance at December 31, 2011 |  |  | 171,410 |
Granted |  |  | 125,133 |
Vested |  |  | (11,814 | )
Cancelled or forfeited |  |  | (28,113 | )
Balance at December 31, 2012 |  |  | 256,616 |
Granted |  |  | 261,062 |
Vested |  |  | (138,220 | )
Balance at December 31, 2013 |  |  | 379,458 |
Granted |  |  | 135,699 |
Vested |  |  | (122,832 | )
Cancelled or forfeited |  |  | (5,860 | )
Balance at December 31, 2014 |  |  | 386,465 |
Schedule of Tax Benefit (short-fall) from Share-based Payment Arrangements [Table Text Block] |
|  | 2014 |  |  | 2013 |  |  | 2012 |
|  | (In thousands) |
Short-fall of tax deductions in excess of grant-date fair value |  | $ | (1,285 | ) |  | $ | (2,509 | ) |  | $ | (620 | )
Benefit of tax deductions on grant-date fair value |  |  | 1,292 |  |  |  | 4,172 |  |  |  | 747 |
Total benefit of tax deductions |  | $ | 7 |  |  | $ | 1,663 |  |  | $ | 127 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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