5. ADDITIONAL PAID-IN CAPITAL (Tables)

6 Months Ended

Jun. 30, 2017

Additional Paid in Capital [Abstract]

Fair value assumptions

Risk-free interest rate	0.8	%
Expected volatility	133.37	%
Expected dividend yield	nil
Expected term in years	5.0
Estimated forfeiture rate	nil

Stock option activity

	2017					2016
	Number of Stock Options			Weighted Average Exercise Price		Number of Stock Options			Weighted Average Exercise Price
Outstanding, beginning of period		3,694,900		$	0.94		4,578,700		$	3.99
Granted		150,000			0.15		—			—
Cancelled/Expired		(100,000	)		0.04		(1,291,300	)		7.89
Outstanding, end of period		3,744,900		$	0.93		3,287,400		$	2.70
Exercisable, end of period		3,744,900		$	0.93		3,023,200		$	2.89
Weighted-average fair value per share of options granted during period	$	0.15					n/a