SHAREHOLDERS' EQUITY (Details)		3 Months Ended		9 Months Ended
	Sep. 22, 2017 USD ($) item $ / shares shares	Sep. 30, 2017 $ / shares shares	Sep. 30, 2016 $ / shares	Sep. 30, 2017 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2017 shares	Apr. 26, 2017 $ / shares	Dec. 31, 2016 shares
Common stock issued		332,977,000		332,977,000				299,570,000
Shares of common stock issued upon exercise of stock options					1,377,085
Exercise of stock options | $				$ 47,000	$ 3,500,000
Return of capital distribution | $				3,059,000	$ 2,986,000
Semi-annual return of capital paid (in dollars per share) | $				0.01
Number of units issued	20,700,000
Number of warrants issued | item	10,350,000
Net proceeds | $	$ 43,200,000			39,397,000
Issuance costs | $	$ 3,400,000			$ 3,353,000
Principal assumptions used in applying the Black-Scholes option pricing model for the awards
Risk-free interest rate (as a percent)		1.46%	1.15%	1.49%	1.15%
Dividend yield (as a percent)		0.36%	0.25%	0.34%	0.25%
Volatility factor of the expected market price of common stock (as a percent)		72.00%	74.00%	73.00%	74.00%
Weighted-average expected life of option		3 years 6 months	5 years	3 years 6 months	5 years
Weighted-average grant date fair value (in dollars per share) | $ / shares		$ 1.40	$ 2.36	$ 1.52	$ 2.36
Common Stock
Shares of common stock issued upon exercise of stock options				20,000	1,377,000
Weighted average exercise price of stock options (in dollars per share) | $ / shares				$ 2.34	$ 2.56
Exercise of stock options | $				$ 47,000	$ 3,500,000
Return of capital distribution | $				$ 3,059,000	$ 2,986,000
Share repurchase program (in shares)					558,000
Number of units issued				20,700,000
Net proceeds | $				$ 39,397,000
Warrants
Number of common share per warrant		1		1
Price per common share for each warrant | $ / shares		$ 2.70		$ 2.70
Number of units allocated to common stock		10,350,000		10,350,000
Number of warrants remained outstanding and unexercised		10,350,000		10,350,000
Principal assumptions used in applying the Black-Scholes option pricing model for the awards
Risk-free interest rate (as a percent)	1.56%
Dividend yield (as a percent)	0.36%
Volatility factor of the expected market price of common stock (as a percent)	71.00%
Weighted-average expected life of option				1 year
Weighted-average grant date fair value (in dollars per share) | $ / shares	$ 0.40
Lexam
Price per unit | $ / shares							$ 3.00
Lexam | Common Stock
Common stock issued						12,687,035