The following summarizes the Company's employee and non-employee common stock warrant activity for the years ended December 31, 2015 and 2014:



	Number of Warrants (000's)		Weighted Average Exercise Price		Weighted Average Remaining Contract Life (in years)	Aggregate Intrinsic Value (000's) ^(a)
Outstanding at December 31, 2013	3,865		$	3.48
Granted	573		$	4.31
Exercised	(1,275	)	$	3.55
Forfeited	(82	)	$	5.33
Expired	(365	)	$	4.29
Outstanding at December 31, 2014	2,716		$	3.45	3.9	$	1,820
Vested at December 31, 2014	2,192		$	3.25	3.0	$	1,820
Vested or Expected to Vest at December 31, 2014 ^(b)	2,670		$	3.25	3.8	$	1,820

Outstanding at December 31, 2014	2,716		$	3.45
Granted	275		$	4.25
Exercised	(519	)	$	3.43
Forfeited	(225	)	$	4.04
Expired	(196	)	$	3.91
Outstanding at December 31, 2015	2,051		$	3.46	4.7	$	305
Vested at December 31, 2015	1,576		$	3.19	3.5	$	305
Vested or Expected to Vest at December 31, 2015 ^(b)	1,998		$	3.43	4.7	$	305

^(a) Represents the aggregate gain on exercise for vested in-the-money warrants as of December 31, 2015.

^(b)Includes forfeiture adjusted unvested shares.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of awards for employee stock options and stock warrants, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

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-Name Accounting Standards Codification
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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

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