v3.19.1

COMPENSATION PLANS (Tables)

12 Months Ended

Dec. 31, 2018

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of non-vested restricted shares of common stock

A summary of all activity relating to our restricted shares for the year ended December 31, 2018, is presented below:

					Weighted Average Grant-Date Fair Value
		Shares
Restricted shares of common stock, beginning of period		3,163,903			$	1.73
Granted with service only condition		277,911			$	4.16
Granted with service and performance conditions		187,296			$	3.91
Vested, service only condition		(1,112,256	)		$	2.14
Vested, service and market conditions		(71,251	)		$	2.10
Forfeited, service only condition		(305,002	)		$	1.67
Forfeited, service and market conditions		—			$	—
Forfeited, service and performance conditions		(187,296	)		$	3.91
Restricted shares of common stock, end of period		1,953,305			$	1.87

Summary of stock option activity

A summary of all stock option activity for the year ended December 31, 2018, is as follows:

		Shares			Weighted Average Exercise Price		Aggregate Intrinsic Value1		Weighted Average Remaining Contractual Life
Outstanding non-qualified stock options, beginning of period		2,075,821			$3.74
Granted		1,558,185			$3.90
Exercised		(95,004	)		$1.20
Forfeited		(174,025	)		$1.21
Expired		(13,293	)		$30.49
Outstanding non-qualified stock options, end of period		3,351,684			$3.91		$1,810,165		8.2
Vested or expected to vest, end of period		3,351,684			$3.91		$1,810,165		8.2
Exercisable non-qualified stock options, end of period		876,084			$6.44		$845,691		6.4

Service And Market Condition Based Vesting [Member] | Stock Options [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of stock options, valuation assumptions

Valuation models require the input of highly subjective assumptions, including the expected volatility of the price of the underlying stock. We used the following assumptions to compute the weighted average fair market value of options with service and market conditions granted in 2018 and 2017:

		2018				2017				2016
Closing stock price on grant date		$	3.90			$	2.29			$	1.03
Risk free interest rate		2.9		%		2.2		%		1.9		%
Dividend yield		—		%		—		%		—		%
Estimated volatility		75.0		%		81.7		%		86.2		%
Expected life		10.00 years				10.00 years				10.00 years

Service And Market Condition Based Vesting [Member] | Restricted Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of stock options, valuation assumptions

Valuation models require the input of highly subjective assumptions, including the expected volatility of the price of the underlying stock. We used the following assumptions to compute the weighted-average grant date fair market value of restricted stock with service and market conditions granted in 2017 and 2016:

		2017				2016
Closing stock price on grant date		$	2.29			$	1.03
Risk free interest rate		1.7		%		1.3		%
Dividend yield		—		%		—		%
Estimated volatility		81.7		%		86.2		%
Expected life		5.00 years				5.00 years

Service Based Vesting [Member] | Stock Options [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of stock options, valuation assumptions

Option valuation models require the input of highly subjective assumptions, including the expected volatility of the price of the underlying stock. We used the following assumptions to compute the weighted average fair market value of options with service-based vesting granted in 2018, 2017 and 2016:

		2018				2017				2016
Closing stock price on grant date		$	3.90			$	2.29			$	1.03
Risk free interest rate		1.1		%		1.6		%		1.8		%
Dividend yield		—		%		—		%		—		%
Estimated volatility		72.8		%		71.5		%		63.8		%
Expected option life		6.00 years				6.00 years				6.25 years

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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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