XML 42 R30.htm IDEA: XBRL DOCUMENT v3.5.0.2

Note 10 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

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

		Six Months Ended June 30,
		2016								2015
		Shares				Weighted- Average Exercise Price				Shares				Weighted- Average Exercise Price
Beginning balance			298,740			$	9.97				759,683			$	11.36
Issued			1,500				49.91				-				-
Exercised			(22,669	)			12.82				(369,952	)			12.70
Forfeited			(1,100	)			15.48				(1,650	)			15.48
Expired			(6,037	)			13.57				(8,007	)			16.90
Ending balance			270,434			$	9.85				380,074			$	9.92

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

													Weighted-Average
Outstanding:					Stock Options				Weighted-Average				Remaining
Range of Exercise Prices					Outstanding				Exercise Price				Contractual Life
$	5.76	$9.21				156,945			$	5.76				2.52
$	9.22	$15.47				95,532				12.63				1.17
$	15.48	$22.66				7,548				19.72				6.92
$	22.67	$49.50				10,409				38.80				7.70
						270,434			$	9.85				2.37

Exercisable:					Stock Options				Weighted-Average
Range of Exercise Prices					Exercisable				Exercise Price
$	5.76	$9.21				104,898			$	5.76
$	9.22	$15.47				95,532				12.63
$	15.48	$22.66				6,228				19.66
$	22.67	$49.50				2,409				24.61
						209,067			$	9.53

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

		Six Months Ended June 30,
		2016								2015
		Shares				Weighted- Average Grant Date Fair Value				Shares				Weighted- Average Grant Date Fair Value
Unvested at beginning			369,093			$	24.43				509,336			$	21.58
Issued			139,732				45.45				78,070				36.06
Forfeited			(9,475	)			40.58				(1,632	)			29.18
Vested			(195,738	)			22.53				(193,930	)			20.66
Unvested at end			303,612			$	34.83				391,844			$	24.89

X

- 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

Name:	us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration