15. Related party transactions (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
General and administrative expenses	$ 13,783	$ 12,871
Selling expenses	14,467	11,892
Consulting Fees [Member]
General and administrative expenses	1	1
Royalty Expense [Member]
General and administrative expenses	$ 600	$ 0