CAPITAL STOCK (Tables)

12 Months Ended

Dec. 31, 2015

CAPITAL STOCK

Summary of capital stock share issuances

	2015		2014		2013
Shares outstanding as of December 31,		51,501,877		50,284,007		40,110,661
Summary of Share Issuances:
Share Issuances related to Equity Compensation:
Shares issued upon exercise of stock options by employees		657,998		711,516		478,411
Proceeds realized from stock option exercises	$	2,780,188	$	2,964,445	$	766,926
Average exercise price of options exercised	$	4.23	$	4.17	$	1.60
Restricted Stock Grants		850,000		740,000		310,000
Share issuances related to Warrant Exercises
Shares issued upon the exercise of warrants		—		904,886		130,833
Proceeds realized from warrant exercises		—	$	8,433,045	$	1,164,982
Share issuances related to Equity Offerings
Shares issued pursuant to equity offerings		—		7,816,944		17,496,721
Proceeds realized from equity offerings		—	$	69,780,967	$	49,664,324
Share issuances in Exchange for Services
Share issuances in Exchange for Services		—		—		200,000
Value of Shares issued in Exchange for Services		—		—	$	780,678