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Share-Based Payments (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Changes in Non-Vested Shares of Restricted Common Stock

The following table provides activity of restricted common stock for the years ended December 31, 2016, 2015 and 2014:

	Shares			Weighted Average Grant Date Fair Value Per Share
Balance, December 31, 2013		139,641		$	4.94
Restricted common stock vested		(98,530	)		5.76
Restricted common stock granted		73,394			9.89
Balance, December 31, 2014		114,505			4.94
Restricted common stock vested		(96,172	)		6.92
Restricted common stock granted		255,151			6.89
Restricted common stock forfeited		(14,161	)		8.08
Balance, December 31, 2015		259,323			7.05
Restricted common stock vested		(122,141	)		7.23
Restricted common stock granted		527,889			6.64
Restricted common stock forfeited		(67,825	)		6.88
Balance, December 31, 2016		597,246		$	6.63

Activity of Non-Vested Stock Options

The following table presents activity of nonvested common stock options during the years ended December 31, 2016, 2015 and 2014:

	Options			Weighted Average Exercise Price Per Share
Balance, December 31, 2013		673,833		$	6.59
Common stock options vested		(592,433	)		6.29
Balance, December 31, 2014		81,400			7.62
Common stock options vested		(31,400	)		3.84
Common stock options forfeited		(50,000	)		10.00
Balance, December 31, 2015 and 2016		—		$	—

Activity of Exercisable Common Stock Options

The following table presents activity of exercisable common stock options during the years ended December 31, 2016, 2015 and 2014:

	Options			Weighted Average Exercise Price Per Share
Balance, December 31, 2013		543,867		$	5.76
Common stock options exercised		(150,000	)		5.72
Common stock options vested		592,433			6.29
Balance, December 31, 2014		986,300			6.08
Common stock options exercised		(242,050	)		5.16
Common stock options vested		31,400			3.84
Balance, December 31, 2015		775,650			6.28
Common stock options exercised		(27,500	)		4.76
Balance, December 31, 2016		748,150		$	6.33

Intrinsic Value of Options Outstanding and Exercisable

The following table provides information pertaining to the intrinsic value of common stock options outstanding and exercisable as of December 31, 2016 and 2015:

	December 31,
(In millions)	2016		2015
Intrinsic value of common stock options outstanding	$	0.3	$	1.5
Intrinsic value of common stock options exercisable		0.3		1.4

Intrinsic Value of Options Exercised and Fair Value of Options Vested

The following table provides information presents the intrinsic value of common stock options exercised and the fair value of common stock options that vested during the years ended December 31, 2016, 2015 and 2014:

	Year Ended December 31,
(In millions)	2016		2015		2014
Intrinsic value of common stock options exercised ⁽¹⁾	$	0.1	$	0.4	$	0.1
Fair value of common stock options vested⁽²⁾		—		1.2		0.8

⁽¹⁾

The intrinsic value of common stock options exercised is the difference between the fair value of the Company’s common stock on the exercise date and the exercise price.

⁽²⁾

The fair value of common stock options vested is based on the grant date fair value.

Summary of Vesting Information for RSU Awards Granted

The following tables provide vesting information for the RSU awards granted in the years ended December 31, 2016 and 2015:

Year Ended December 31, 2015 If the Company’s Compound Annualized TSR During the Performance Period is:	Restricted Stock Units that Vest
Less than 10%		—
10% to less than 15%		150,000
15% to less than 40%		250,000
40% or more		260,000

Year Ended December 31, 2016 If the Company’s Compound Annualized TSR Compared to the Russell 2000 Index Compound Annualized TSR During the Performance Period is:	TSR Payout Factor (% of TSR Target Share Amount)
More than 8 percentage points below the Russell 2000 Index TSR		0	%
8 percentage points below the Russell 2000 Index TSR		50	%
Equal to the Russell 2000 Index TSR		100	%
8 or more percentage points above the Russell 2000 Index TSR		150	%

Assumptions Used in Determining Fair Value of RSU Awards Granted

The following table provides assumptions used in determining the fair value of RSU awards granted during the years ended December 31, 2016 and 2015:

	Year Ended December 31,
(Weighted averages)	2016			2015
Grant date fair value	$	7.02		$	7.53
Grant date closing stock price	$	6.74		$	11.05
Grant date closing index value		4,941.53		N/A
Volatility		48.66	%		48.90	%
Risk-free rate		0.85	%		0.84	%
Dividend yield		—	%		—	%
Probability of death or disability	N/A				5.00	%

Activity of RSUs

The following table presents activity of RSUs during the years ended December 31, 2016 and 2015:

	Restricted Stock Units			Grant Date Fair Value per Restricted Stock Unit
Balance, December 31, 2014		—		$	—
Restricted stock units awarded		260,000			7.53
Balance, December 31, 2015		260,000			7.53
Restricted stock units awarded		121,823			7.20
Restricted stock units forfeited		(27,765	)		7.20
Balance, December 31, 2016		354,058		$	7.44