Equity (Tables)

12 Months Ended

Dec. 31, 2019

Stockholders' Equity Note [Abstract]

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

	Year ended December 31, 2019
	Amount of options			Weighted average exercise		Weighted average remaining contractual life (in years)		Aggregate intrinsic value
Outstanding at January 1, 2019		2,055,182			9.86		3.80	$	2,594
Granted		155,000			13.60
Exercised		(177,872	)		6.96
Expired and forfeited		(162,898	)		9.57
Outstanding at December 31, 2019		1,869,412			10.25		3.21	$	23,838
Vested and expected to vest		1,869,412			10.25		3.21	$	23,838
Exercisable at December 31, 2019		970,408			9.34		2.41	$	13,258

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

									Weighted
	Options		Weighted				Options		Average
	outstanding		Average		Weighted		Exercisable		Exercise
	as of		remaining		average		as of		price of
Ranges of	December 31,		contractual		exercise		December 31,		Options
exercise price	2019		Term		price		2019		Exercisable
			(Years)		$				$
1.26-6.10		12,158		1.33		2.75		12,158		2.75
7.60		300,000		1.34		7.60		300,000		7.60
8.45-8.96		95,000		2.48		8.88		63,750		8.93
9.11-9.96		457,254		3.05		9.39		287,000		9.43
10.21-11.21		145,000		4.11		10.94		55,000		10.69
11.23		607,500		3.68		11.23		200,000		11.23
11.99-12.40		90,000		3.16		12.13		52,500		12.17
13.12		125,000		1.57		13.12		-		-
13.28-15.60		37,500		5.25		15.14		-		-
		1,869,412		3.21		10.25		970,408		9.34