16. Stockholders' deficit - Options Outstanding (Details) - Options	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Beginning balance, options	480,000
Beginning balance, options exercise price | $ / shares	$ 0.12
Options Exercisable, shares	0
Ending Balance, options	480,000
Ending Balance, options exercise price | $ / shares	$ 0.12
Weighted Average Contractual Life, options	2 years 29 days