Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Summary Components of Stock-Based Compensation Expense

The following table summarizes the components of stock-based compensation expense in the condensed consolidated statements of operations for the quarters and nine months ended September 30, 2020 and 2019:

	Quarters Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Cost of services	$	121	$	136	$	422	$	442
Cost of product sales		31		35		96		114
Selling, general and administrative		940		1,199		3,158		4,046
Product development		233		293		799		804
Total	$	1,325	$	1,663	$	4,475	$	5,406

Time-Based Stock Appreciation Rights [Member]

Summary of Stock Appreciation Rights

A summary of the Company’s time-based stock appreciation rights (“SARs”) for the nine months ended September 30, 2020 is as follows:

						Weighted-
						Average		Aggregate
				Weighted-		Remaining		Intrinsic
	Number of			Average		Contractual		Value
	Shares			Exercise Price		Term (years)		(in thousands)
Outstanding at January 1, 2020		2,125,294		$	5.35
Granted		—			—
Exercised		(318,000	)		2.46
Forfeited or expired		(4,450	)		2.46
Outstanding at September 30, 2020		1,802,844		$	5.81		2.77	$	224
Exercisable at September 30, 2020		1,802,844		$	5.81		2.77	$	226
Vested and expected to vest at September 30, 2020		1,802,844		$	5.81		2.77	$	224

Performance-Based Stock Appreciation Rights [Member]

Summary of Stock Appreciation Rights

A summary of the Company’s performance-based SARs for the nine months ended September 30, 2020 is as follows:

						Weighted-
						Average		Aggregate
				Weighted-		Remaining		Intrinsic
	Number of			Average		Contractual		Value
	Shares			Exercise Price		Term (years)		(in thousands)
Outstanding at January 1, 2020		233,496		$	6.01
Granted		—			—
Exercised		(82,275	)		2.46
Forfeited or expired		—			—
Outstanding at September 30, 2020		151,221		$	3.24		1.76	$	16
Exercisable at September 30, 2020		151,221		$	3.24		1.76	$	16
Vested and expected to vest at September 30, 2020		151,221		$	3.24		1.76	$	16

Time-Based Restricted Stock Units [Member]

Summary of Restricted Stock Units

A summary of the Company’s time-based restricted stock units (“RSUs”) for the nine months ended September 30, 2020 is as follows:

	Number of Shares			Weighted- Average Grant Date Fair Value
Balance at January 1, 2020		1,265,434		$	6.16
Granted		127,158			4.06
Vested		(454,498	)		9.02
Forfeited or expired		(68,602	)		5.96
Balance at September 30, 2020		869,492		$	4.51

Performance-Based Restricted Stock Units [Member]

Summary of Restricted Stock Units

A summary of the Company’s performance-based RSUs for the nine months ended September 30, 2020 is as follows:

	Number of Shares			Weighted- Average Grant Date Fair Value
Balance at January 1, 2020		1,067,809		$	6.28
Granted		4,915			3.40
Vested		(169,793	)		8.93
Forfeited or expired		(216,313	)		8.02
Balance at September 30, 2020		686,618		$	3.92

Market Performance Units [Member]

Fair Value of Stock Appreciation Rights Estimated

As the MPUs contain both market and service conditions, they have been treated as a series of three separate awards, or tranches, for purposes of recognizing stock-based compensation expense. The Company recognizes stock-based compensation expense on a tranche-by-tranche basis over the requisite service period for each specific tranche. The Company estimated the fair values of the MPUs using a Monte Carlo simulation model that used the following assumptions:

	Nine Months Ended September 30,
	2020	2019
Risk-free interest rate	0.10% to 0.14%	1.61% to 1.88%
Estimated volatility factor	71.0% to 88.0%	40.0% to 54.0%
Expected dividends	None	None