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Note 11 - Share-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Years Ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Stock options and SARs |  | $ | 1,321 |  |  | $ | 407 |  |  | $ | 984 |
Restricted stock |  |  | 777 |  |  |  | 835 |  |  |  | 551 |
Performance shares |  |  | 432 |  |  |  | 243 |  |  |  | 729 |
Total share-based compensation expense |  | $ | 2,530 |  |  | $ | 1,485 |  |  | $ | 2,264 |
Related income tax benefit |  | $ | 286 |  |  | $ | 262 |  |  | $ | 282 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Years Ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Stock Options: |  |  |  |  |  |  |  |  |  |  |  |
Risk free interest rate |  |  | 0.1% - 1.4% |  |  |  | 1.7% - 2.5% |  |  |  | 2.6% - 2.9% |
Expected award life (years) |  |  | 3-10 |  |  |  | 3-10 |  |  |  | 3-10 |
Expected volatility |  |  | 35.6% - 61.5% |  |  |  | 34.2% - 38.8% |  |  |  | 35.4% - 42.1% |
Expected dividend yield |  |  | 1.9% - 5.3% |  |  |  | 2.3% - 2.5% |  |  |  | 1.6% - 2.1% |
Weighted average fair value per share at grant date |  | $ | 2.36 |  |  | $ | 3.96 |  |  | $ | 5.93 |
SARs: |  |  |  |  |  |  |  |  |  |  |  |
Risk free interest rate |  |  | 0.2% - 1.4% |  |  |  | 2.4 | % |  |  | 2.6 | %
Expected award life (years) |  |  | 3 |  |  |  | 3 |  |  |  | 3 |
Expected volatility |  |  | 35.6% - 55.8% |  |  |  | 34.8 | % |  |  | 38.1 | %
Expected dividend yield |  |  | 3.6% - 5.3% |  |  |  | 2.3 | % |  |  | 1.6 | %
Weighted average fair value per share at grant date |  | $ | 2.18 |  |  | $ | 3.97 |  |  | $ | 6.06 |
Share-based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  | Weighted Average |  |  |  | Aggregate |
|  |  | No. of |  |  |  | Weighted Average |  |  |  | Remaining Life |  |  |  | Intrinsic Value |
|  |  | Shares |  |  |  | Exercise Price |  |  |  | (in years) |  |  |  | (in thousands) |
Outstanding, January 1, 2020 |  |  | 701,131 |  |  | $ | 16.82 |  |  |  | 2.95 |  |  | $ | 714 |
Granted |  |  | 560,125 |  |  |  | 9.41 |  |  |  |  |  |  |  |  |
Exercised |  |  | (154,396 | ) |  |  | 14.01 |  |  |  |  |  |  |  |  |
Lapsed or cancelled |  | (136,838) |  |  |  | 17.25 |  |  |  |  |  |  |  |  |
Outstanding, December 31, 2020 |  |  | 970,022 |  |  |  | 12.92 |  |  |  | 3.74 |  |  |  | 11,128 |
Exercisable, December 31, 2020 |  |  | 279,707 |  |  |  | 17.41 |  |  |  | 2.41 |  |  |  | 1,664 |
Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  | Weighted Average |  |  |  | Aggregate |
|  |  | No. of |  |  |  | Weighted Average |  |  |  | Remaining Life |  |  |  | Intrinsic Value |
|  |  | Shares |  |  |  | Exercise Price |  |  |  | (in years) |  |  |  | (in thousands) |
Outstanding, January 1, 2020 |  |  | 206,700 |  |  | $ | 18.67 |  |  |  | 2.04 |  |  | $ | - |
Granted |  |  | 225,625 |  |  |  | 10.08 |  |  |  |  |  |  |  |  |
Exercised |  |  | (46,696 | ) |  |  | 16.46 |  |  |  |  |  |  |  |  |
Lapsed or cancelled |  | (68,501) |  |  |  | 15.97 |  |  |  |  |  |  |  |  |
Outstanding, December 31, 2020 |  |  | 317,128 |  |  |  | 13.47 |  |  |  | 3.36 |  |  |  | 2,031 |
Exercisable, December 31, 2020 |  |  | 79,372 |  |  |  | 20.42 |  |  |  | 1.56 |  |  |  | 238 |
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] |
|  |  |  |  |  | Weighted Average |
|  | No. of |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Outstanding, January 1, 2020 |  |  | 151,166 |  |  | $ | 18.44 |
Granted |  |  | 67,204 |  |  |  | 13.52 |
Vested |  |  | (43,706 | ) |  |  | 18.30 |
Forfeited |  |  | (17,420 | ) |  |  | 14.24 |
Outstanding, December 31, 2020 |  |  | 157,244 |  |  |  | 16.84 |
Schedule of Nonvested Performance-based Units Activity [Table Text Block] |
|  |  |  |  |  | Weighted Average |
|  | No. of |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Outstanding, January 1, 2020 |  |  | 194,012 |  |  | $ | 19.77 |
Granted |  |  | 25,000 |  |  |  | 12.00 |
Vested |  |  | (5,892 | ) |  |  | 16.97 |
Forfeited |  |  | (26,856 | ) |  |  | 23.46 |
Outstanding, December 31, 2020 |  |  | 186,264 |  |  |  | 18.28 |

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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=115993241&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 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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