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Note 15 - Stock-based Compensation and Other Benefit Plans (Tables) | 6 Months Ended
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Jun. 30, 2022
Notes Tables |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
|  | (in thousands) |
Stock-based compensation - equity awards |  | $ | 615 |  |  | $ | 117 |  |  | $ | 1,019 |  |  | $ | 440 |
Stock-based compensation - liability awards |  |  | 227 |  |  |  | 397 |  |  |  | 1,245 |  |  |  | 1,633 |
Total stock-based compensation |  | $ | 842 |  |  | $ | 514 |  |  | $ | 2,264 |  |  | $ | 2,073 |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Six Months Ended June 30, |
|  | 2022 |  |  | 2021 |
Weighted average exercise price - ($/share) |  | $ | 6.41 |  |  | $ | 3.14 |
Expected life in years |  |  | 6.0 |  |  |  | 6.0 |
Average expected volatility |  |  | 72 | % |  |  | 75 | %
Risk-free interest rate |  |  | 1.98 | % |  |  | 0.95 | %
Expected dividend yield |  |  | 2.30 | % |  |  | — |
Weighted average grant date fair value - ($/share) |  | $ | 2.84 |  |  | $ | 2.07 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Number of Shares Underlying Options |  |  | Weighted Average Exercise Price Per Share |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
|  | (in thousands) |  |  |  |  |  |  | (in years) |  |  |  |  |
Outstanding at January 1, 2022 |  |  | 359 |  |  | $ | 1.96 |  |  |  |  |  |  |  |  |
Granted |  |  | 241 |  |  |  | 6.41 |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Unvested shares forfeited |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Vested shares expired |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2022 |  |  | 600 |  |  | $ | 3.75 |  |  |  | 8.84 |  |  | $ | 1,916 |
Exercisable at June 30, 2022 |  |  | 194 |  |  | $ | 1.68 |  |  |  | 8.16 |  |  | $ | 1,017 |
|  | Number of Shares Underlying Options |  |  | Weighted Average Exercise Price Per Share |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
|  | (in thousands) |  |  |  |  |  |  | (in years) |  |  |  |  |
Outstanding at January 1, 2022 |  |  | 615 |  |  | $ | 1.58 |  |  |  |  |  |  |  |  |
Granted |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercised |  |  | (229 | ) |  |  | 1.12 |  |  |  |  |  |  |  |  |
Unvested shares forfeited |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Vested shares expired |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2022 |  |  | 386 |  |  | $ | 1.86 |  |  |  | 1.46 |  |  | $ | 1,965 |
Exercisable at June 30, 2022 |  |  | 386 |  |  | $ | 1.86 |  |  |  | 1.46 |  |  | $ | 1,965 |
Nonvested Restricted Stock Shares Activity [Table Text Block] |
|  | Restricted Stock |  |  | Weighted Average Grant Date Fair Value |
|  | (in thousands) |  |  |  |  |
Non-vested shares outstanding at January 1, 2022 |  |  | 741 |  |  | $ | 2.36 |
Awards granted |  |  | 384 |  |  |  | 6.56 |
Awards vested |  |  | (334 | ) |  |  | 2.25 |
Awards forfeited |  |  | (30 | ) |  |  | 3.50 |
Non-vested shares outstanding at June 30, 2022 |  |  | 761 |  |  | $ | 4.48 |
Share-Based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] |
|  | Number of Shares Underlying SARs |  |  | Weighted Average Exercise Price Per Share |  |  | Weight Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
|  | (in thousands) |  |  |  |  |  |  | (in years) |  |  | (in thousands) |
Outstanding at January 1, 2022 |  |  | 362 |  |  | $ | 1.81 |  |  |  |  |  |  |  |  |
Granted |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercised |  |  | (153 | ) |  |  | 1.71 |  |  |  |  |  |  |  |  |
Unvested SARs forfeited |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Vested SARs expired |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2022 |  |  | 209 |  |  | $ | 1.88 |  |  |  | 1.36 |  |  | $ | 1,055 |
Exercisable at June 30, 2022 |  |  | 209 |  |  | $ | 1.88 |  |  |  | 1.36 |  |  | $ | 1,055 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + 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) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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