Share based payment arrangements (Tables)

12 Months Ended

Dec. 31, 2019

Share based payment arrangements

Schedule of fair value inputs

	Tranche 1	Tranche 2
Parameter
Share price at grant date	USD 13.80	USD 16.15
Exercise price	USD 13.90	USD 16.15
Expected volatility	55.00%	58.40%
Expected dividends	--	--
Risk-free interest rate	2.49%	2.85%
Fair value at grant date	USD 8.00	USD 9.74

Schedule of option activity

	December 31,
	2019		2018
	Number of options	Weighted-average exercise price (USD)	Number of options	Weighted-average exercise price (USD)
Outstanding at January 1	353,400	14.46	279,000	13.90
Granted during the year	--	--	93,000	16.15
Exercised during the year	--	--	--	--
Forfeited during the year	--	--	(18,600)	14.46
Outstanding at December 31	353,400	14.46	353,400	14.46
Exercisable at December 31	--	--	--	--