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Note 19 - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

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

		Number of Restricted Stock Units				Weighted-Average Grant Date Fair Values
Outstanding on December 31, 2014			685,430			$	22.15
Granted			387,187			$	14.86
Vested			(237,957	)		$	21.73
Forfeited			(60,115	)		$	15.74
Outstanding on December 31, 2015			774,545			$	19.13

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

		Shares Under Option				Weighted Average Exercise Price Per Share				Weighted Average Remaining Contractual  Life (Years)
Outstanding on December 31, 2014			781,321			$	22.56
Granted			783,476			$	15.31
Forfeited			(44,002	)		$	20.25
Outstanding on December 31, 2015			1,520,795			$	18.89				6.17
Exercisable on December 31, 2015			273,205			$	22.61				5.73
Expected to vest December 31, 2015			1,247,590			$	18.08				6.27

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		For the Years Ended December 31,
		2015				2014
Weighted-average fair value of options granted		$	5.94			$	7.74
Weighted-average risk-free interest rate		1.46%				1.46%
Range of risk-free interest rates		1.26% - 1.60%				1.39% - 1.51%
Weighted-average expected option lives		4.5 years				4.5 years
Expected option lives		4.5 years				4.5 years
Weighted-average volatility		46%				39%
Range of expected volatilities		40% - 49%				36% - 42%
Weighted-average expected dividend yield		0.0%				0.0%

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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

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+ 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 (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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