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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity

The following table presents certain information related to the activity of our non-vested stock option grants:

			Number of Stock Options						Weighted Average Exercise Prices						Weighted Average Remaining Contractual Term (years)						Aggregate Intrinsic Value
Outstanding as of December 31, 2022			1,250,685						$	3.71					7.66						$	—
Granted(1)			—						—						—						—
Less: Forfeited			40,000						3.46						—						—
Less: Expired			161,925						3.05						—						—
Less: Exercised			20,000						3.46						—						—
Outstanding as of September 30, 2023			1,028,760						$	3.83					8.05						$	4,140
Vested as of September 30, 2023(2)			950,759						$	4.78					7.81						$	4,140
Exercisable as of September 30, 2023			580,568						$	4.78					7.81						$	2,001

(1) Contingent options have been excluded from the calculations in the table above.

(2) The vested shares are calculated based on all vested shares at September 30, 2023, inclusive of those that have since expired. The weighted average exercise prices, weighted-average remaining contractual term and aggregate intrinsic value is calculated based on only vested shares that are outstanding and exercisable at September 30, 2023.

Schedule of Nonvested Share Activity

The following table presents certain information related to the activity of our non-vested restricted common stock grants:

			Number of Restricted Shares						Weighted Average Grant Date Fair Value
Outstanding as of December 31, 2022			714,239						$	2.73
Granted (1)			45,000						5.25
Less: Forfeited			130,546						3.16
Less: Vested			181,334						3.25
Outstanding as of September 30, 2023			447,359						$	2.64

Share-based Payment Arrangement, Activity

The following table presents our total stock-based compensation expense:

						Three Months Ended September 30,												Nine Months Ended September 30,
						2023						2022						2023						2022
Employee stock-based compensation expense
Pre-tax						$	350					$	261					$	738					$	792
Post-tax (1)						277						206						583						626
Director stock-based compensation expense
Pre-tax						60						29						115						132
Post-tax (1)						47						23						91						104

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The following weighted-average assumptions were used to value the stock options granted:

			2023						2022
Expected annual dividend yield			—		%				—		%
Expected volatility			80.84		%				49.66		%
Risk-free interest rate			3.44		%				2.92		%
Expected term			6 years						6 years

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Tabular disclosure of the changes in outstanding nonvested shares.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, 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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