Stock Based Compensation

In May 2017, the Company’s stockholders approved the 2017 Plan, with such stockholder action resulting in the termination of the Company’s 2010 Stock Incentive Plan (the “2010 Plan”). The terms of the 2017 Plan are substantially the same as the 2010 Plan. However, any outstanding awards under the 2010 Plan will continue in accordance with the terms of the 2010 Plan and any award agreement executed in connection with such outstanding awards. At March 31, 2019, there were 115,170 shares of non-vested restricted stock outstanding under the 2010 Plan.

Pursuant to the 2017 Plan, eligible employees, officers and directors of the Company are offered the opportunity to acquire the Company's common stock through the award of restricted stock and other equity awards under the 2017 Plan. The maximum number of shares that may be issued under the 2017 Plan is 5,570,000. Of the common stock authorized at March 31, 2019, 1,605,667 shares are available for issuance under the 2017 Plan. The Company’s non-employee directors have been issued 131,975 shares under the 2017 Plan as of March 31, 2019. The Company’s employees have been issued 828,701 shares of restricted stock under the 2017 Plan as of March 31, 2019. At March 31, 2019, there were 756,861 shares of non-vested restricted stock outstanding and 3,003,657 common shares reserved for issuance in connection with PSUs under the 2017 Plan.

Of the common stock authorized at December 31, 2018, 3,865,174 shares were reserved for issuance under the 2017 Plan. The Company's non-employee directors had been issued 131,975 shares under the 2017 Plan as of December 31, 2018. The Company’s employees had been issued 292,459 shares of restricted stock under the 2017 Plan as of December 31, 2018. At December 31, 2018, there were 290,373 shares of non-vested restricted stock outstanding and 1,280,392 common shares reserved for issuance in connection with outstanding PSUs under the 2017 Plan.


(a)	Restricted Common Stock Awards

During the three months ended March 31, 2019 and March 31, 2018, the Company recognized non-cash compensation expense on its restricted common stock awards of $0.5 million and $0.3 million, respectively. Dividends are paid on all restricted common stock issued, whether those shares have vested or not. In general, non-vested restricted stock is forfeited upon the recipient's termination of employment. There were no forfeitures of shares for the three months ended March 31, 2019 and 2018, respectively.

A summary of the activity of the Company's non-vested restricted stock collectively under the 2010 Plan and 2017 Plan for the three months ended March 31, 2019 and 2018, respectively, is presented below:



	2019				2018
	Number of Non-vested Restricted Shares		Weighted Average Per Share Grant Date Fair Value ⁽¹⁾		Number of Non-vested Restricted Shares		Weighted Average Per Share Grant Date Fair Value ⁽¹⁾
Non-vested shares at January 1	507,536		$	5.91	422,928		$	6.36
Granted	536,242		6.30		206,597		5.57
Vested	(171,747	)	5.88		(164,645	)	6.72
Forfeited	—		—		—		—
Non-vested shares as of March 31	872,031		$	6.16	464,880		$	5.88
Restricted stock granted during the period	536,242		$	6.30	206,597		$	5.57


⁽¹⁾	The grant date fair value of restricted stock awards is based on the closing market price of the Company’s common stock at the grant date.

At March 31, 2019 and 2018, the Company had unrecognized compensation expense of $4.8 million and $2.4 million, respectively, related to the non-vested shares of restricted common stock under the 2010 Plan and 2017 Plan, collectively. The unrecognized compensation expense at March 31, 2019 is expected to be recognized over a weighted average period of 2.50 years. The total fair value of restricted shares vested during the three months ended March 31, 2019 and 2018 was approximately $1.1 million and $0.9 million, respectively. The requisite service period for restricted stock awards at issuance is three years and the restricted common stock vests ratably over a three year period.


(b)	Performance Stock Units

During the three months ended March 31, 2019 and 2018, the Compensation Committee and the Board of Directors approved the grant of PSUs. Each PSU represents an unfunded promise to receive one share of the Company's common stock once the performance condition has been satisfied. The awards were issued pursuant to and are consistent with the terms and conditions of the 2017 Plan.

The PSU awards are subject to performance-based vesting under the 2017 Plan pursuant to the PSU Agreements. Vesting of the PSUs will occur at the end of three years based on the following:


•	If three-year TSR performance relative to the Company's identified performance peer group (the "Relative TSR") is less than 30^th percentile, then 0% of the target PSUs will vest;


•	If three-year Relative TSR performance is equal to the 30^th percentile, then the Threshold % (as defined in the individual PSU Agreements) of the target PSUs will vest;


•	If three-year Relative TSR performance is equal to the 50^th percentile, then 100% of the target PSUs will vest; and


•	If three-year Relative TSR performance is greater than or equal to the 80^th percentile, then the Maximum % (as defined in the individual PSU Agreements) of the target PSUs will vest.

The percentage of target PSUs that vest for performance between the 30^th, 50^th, and 80^th percentiles will be calculated using linear interpolation.

Total shareholder return for the Company and each member of the peer group will be determined by dividing (i) the sum of the cumulative amount of such entity’s dividends per share for the performance period and the arithmetic average per share volume weighted average price (the “VWAP”) of such entity’s common stock for the last thirty (30) consecutive trading days of the performance period minus the arithmetic average per share VWAP of such entity’s common stock for the last thirty (30) consecutive trading days immediately prior to the performance period by (ii) the arithmetic average per share VWAP of such entity’s common stock for the last thirty (30) consecutive trading days immediately prior to the performance period.

The grant date fair value of the PSUs was determined through a Monte-Carlo simulation of the Company’s common stock total shareholder return and the common stock total shareholder return of its identified performance peer companies to determine the Relative TSR of the Company’s common stock over a future period of three years. For the PSUs granted in 2019 and 2018, the inputs used by the model to determine the fair value are (i) historical stock price volatilities of the Company and its identified performance peer companies over the most recent three year period and correlation between each company's stock and the identified performance peer group over the same time series and (ii) a risk free rate for the period interpolated from the U.S. Treasury yield curve on grant date.

A summary of the activity of the target PSU Awards under the 2017 Plan for the three months ended March 31, 2019 and 2018, respectively, is presented below:



	2019			2018
	Number of Non-vested Target Shares	Weighted Average Per Share Grant Date Fair Value		Number of Non-vested Target Shares	Weighted Average Per Share Grant Date Fair Value
Non-vested target PSUs at January 1	842,792	$	4.20	—	$	—
Granted	1,137,525	4.00		588,535	4.04
Vested	—	—		—	—
Non-vested target PSUs as of March 31	1,980,317	$	4.08	588,535	$	4.04

As of March 31, 2019 and 2018, there was $6.5 million and $2.3 million of unrecognized compensation cost related to the non-vested portion of the PSUs, respectively. Compensation expense related to the PSUs was $0.7 million and $37.2 thousand for the three months ended March 31, 2019 and 2018, respectively.