EQUITY (Tables)

12 Months Ended

Dec. 31, 2016

Equity Tables

Summary of common stock activity

	Common Stock
Shares outstanding at December 31, 2013		87,548,613
Shares issued pursuant to warrants exercised for cash		4,742,632
Shares issued pursuant to cashless warrants exercised		868,565
Conversion of related-party notes payable into Common Stock		154,607
Shares issued as compensation in lieu of cash		94,116
Shares issued pursuant to option exercises		98,617
Shares outstanding at December 31, 2014		93,507,150
Shares issued pursuant to payment of stock dividend on Series E Preferred		478,664
Shares issued pursuant to cashless warrants exercised		45,376
Shares issued pursuant to option exercises		39,705
Shares outstanding at December 31, 2015		94,070,895
Shares issued pursuant to payment of stock dividend on Series E Preferred		950,362
Shares issued pursuant to payment of stock dividend on Series F Preferred		48,513
Shares issued pursuant to payment of stock dividend on Series G Preferred		3,770
Shares issued pursuant to cashless warrants exercised		144,459
Shares issued pursuant to option exercises		12,626
Exchange of common shares for Series G Preferred		(3,383,830	)
Shares outstanding at December 31, 2016		91,846,795

Summary of warrant activity

	Warrants			Weighted- Average Exercise Price
Balance at December 31, 2013		6,598,416		$	0.63
Granted		302,778		$	2.02
Expired / Canceled		(55,000	)	$	1.10
Exercised		(5,868,416	)	$	0.58
Balance at December 31, 2014		977,778		$	1.22
Granted		—		$	0.00
Expired / Canceled		(419,444	)	$	1.86
Exercised		(108,334	)	$	1.01
Balance at December 31, 2015		450,000		$	0.67
Exercised		(275,000	)
Balance at December 31, 2016		175,000