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Stock-Based Compensation and Other Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Stock-Based Compensation and Other Benefit Plans [Abstract] |
Summary of Stock-Based Compensation | Year Ended December 31, 2021 2020 2019 (in thousands)Stock-based compensation - equity awards $ 1,060 $ 848 $ 985Stock-based compensation - liability awards 1,399 (734) 2,521Total stock-based compensation $ 2,459 $ 114 $ 3,506
Stock Option Valuation Assumptions | Year Ended December 31, 2021 2020 2019 Weighted average exercise price - ($/share)$3.14 $1.23 $2.08 Expected life in years 6.0 6.0 3.2 Average expected volatility 74% 74% 73%Risk-free interest rate 0.95% 0.42% 2.33%Weighted average grant date fair value - ($/share)$2.07 $0.79 $1.06
Stock Option Activity | Stock option activity associated with the Monte Carlo model for the year ended December 31, 2021 is provided below: Number of Shares Underlying Options Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (in thousands) (in years) (in thousands)Outstanding at January 1, 2021 644 $1.23 Granted 402 3.14 Exercised — — Unvested shares forfeited (687) 1.96 Vested shares expired — — Outstanding at December 31, 2021 359 $1.96 8.75 $448Exercisable at December 31, 2021 74 $1.23 8.49 $146 Stock option activity associated with the Black-Scholes model for the year ended December 31, 2021 is provided below: Number of Shares Underlying Options Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (in thousands) (in years) (in thousands)Outstanding at January 1, 2021 1,804 $ 1.38 Granted — — Exercised (1,122) 1.22 Unvested shares forfeited (67) 2.33 Vested shares expired — — Outstanding at December 31, 2021 615 $ 1.58 1.44 $ 1,001Exercisable at December 31, 2021 520 $ 1.45 1.31 $ 917
Summary of Non Vested Awards | Restricted Stock Weighted Average Grant Date Fair Value (in thousands) Non-vested shares outstanding at January 1, 2021 1,155 $ 1.30Awards granted 605 3.13Awards vested (543) 1.28Awards forfeited (476) 2.00Non-vested shares outstanding at December 31, 2021 741 $ 2.36
SAR Activity | Number of Shares Underlying SARs Weighted Average Exercise Price Per Share Term Aggregate Intrinsic Value (in thousands) (in years) (in thousands)Outstanding at January 1, 2021 2,940 $ 1.33 Granted — — Exercised (2,450) 1.20 Unvested SARs forfeited (128) 2.33 Vested SARs expired — — Outstanding at December 31, 2021 362 $ 1.81 1.92 $ 506Exercisable at December 31, 2021 194 $ 1.57 1.65 $ 319

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock appreciation rights awards that were outstanding at the beginning and end of the year, and the number of stock appreciation rights awards that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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