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Note 11 - Share Based Compensation and Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Options		Shares				Weighted Average Exercise Price				Weighted Average Remaining Contractual Life (in Years)				Aggregate Intrinsic Value
Balance of Outstanding Options at January 1, 2015			3,182,976			$	19.55
Granted			484,838				27.10
Exercised			(182,199	)			12.47
Forfeited			(10,500	)			28.13
Balance of Outstanding Options at December 31, 2015			3,475,115			$	20.95				5.77			$	12,011,648
Expected to vest after December 31, 2015			1,851,300			$	25.97				7.53			$	559,698
Vested and exercisable at December 31, 2015			1,555,242			$	14.78				3.61			$	11,409,144

Schedule of Nonvested Share Activity [Table Text Block]

Non-vested Shares		Number of Shares				Weighted Average Grant Date Fair Value
Non-vested at January 1, 2015			2,038,064			$	11.48
Granted			484,838				11.27
Vested			(592,529	)			8.63
Forfeited			(10,500	)			13.57
Non-vested at December 31, 2015			1,919,873			$	12.30

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

Stock Awards and Units		Shares				Weighted Average Remaining Contractual Life (in Years)				Aggregate Intrinsic Value				Weighted Average Grant Date Fair Value
Outstanding Non-vested shares at January 1, 2015			402,350											$	24.53
Granted			285,950												24.75
Vested			(204,965	)											24.35
Forfeited			─
Outstanding Non-vested at December 31, 2015			483,335				8.6			$	10,580,203			$	24.73
Expected to vest after December 31, 2015			479,921				8.6			$	10,505,471

X

- Definition

Tabular disclosure of the changes in outstanding nonvested shares.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
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+ References

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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
-Subparagraph (c)(1)
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