11. Stockholders' deficit - Options Outstanding (Details) - Options - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Beginning balance, options	480,000	3,600,000
Beginning balance, options exercise price	$ .12	$ .20
Options Granted, shares		480,000
Options granted, price		$ .12
Options Cancelled, shares		(3,600,000)
Options cancelled, price		$ (.20)
Options Exercisable, shares	280,000
Options Exercisable, price	$ .12
Ending Balance, options	480,000	480,000
Ending Balance, options exercise price	$ 0.12	$ .12
Weighted Average Contractual Life, options	3 years 10 months 3 days