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Note 16 - Share-based Payments (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Share-based Payment Arrangement, Option, Activity [Table Text Block]

		Three months ended June 30, 2019								Three months ended June 30, 2018
		Number of Shares				Weighted average exercise price per share				Number of Shares				Weighted average exercise price per share
Outstanding, beginning of period			665,156			$	44.46				634,883			$	37.48
Granted			144,300				62.12				128,566				64.10
Exercised			(25,316	)			13.26				(16,153	)			12.26
Forfeited			(8,550	)			56.08				(13,100	)			55.04
Expired			(675	)			55.65				-				-
Outstanding, end of period			774,915			$	48.63				734,196			$	42.39
Options exercisable, end of period			306,078			$	33.97				229,780			$	16.92

		Six months ended June 30, 2019								Six months ended June 30, 2018
		Number of Shares				Weighted average exercise price per share				Number of Shares				Weighted average exercise price per share
Outstanding, beginning of period			702,337			$	43.80				653,571			$	36.69
Granted			144,300				62.12				139,566				63.66
Exercised			(54,359	)			19.34				(28,716	)			10.30
Forfeited			(15,301	)			57.55				(30,225	)			47.96
Expired			(2,062	)			55.65				-				-
Outstanding, end of period			774,915			$	48.63				734,196			$	42.39
Options exercisable, end of period			306,078			$	33.97				229,780			$	16.92

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

				Options outstanding												Options exercisable
Exercise Price				Number outstanding				Weighted average exercise price per share				Aggregate intrinsic value				Number outstanding				Weighted average exercise price per share				Weighted average remaining contractual life (years)				Aggregate intrinsic value
$5.52	-	$8.56			32,785			$	7.49			$	1,755				32,785			$	7.49				0.7			$	1,755
$10.16	-	$19.95			86,475				16.32				3,865				85,225				16.27				2.0				3,814
$21.10	-	$27.53			58,750				23.73				2,191				48,750				24.27				2.4				1,792
$35.25	-	$37.35			14,375				35.89				361				11,875				36.02				3.8				297
$43.15	-	$47.00			16,250				44.33				271				11,500				43.99				4.6				196
$53.20	-	$58.65			310,603				55.67				1,663				87,881				55.20				4.6				511
$62.12	-	$64.10			255,677				62.99				-				28,062				64.10				3.2				-
					774,915			$	48.63			$	10,106				306,078			$	33.97				3.2			$	8,365

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

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