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Note 11 - Equity Plans (Tables) | 6 Months Ended
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Jun. 30, 2021
Notes Tables |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | For the Three Months Ended |  |  | For the Six Months Ended |
|  | June 30, |  |  | June 30, |
(in thousands, except per share data) |  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
RSU expense before taxes |  | $ | 258 |  |  | $ | 327 |  |  | $ | 520 |  |  | $ | 687 |
RSU expense after taxes |  | $ | 189 |  |  | $ | 199 |  |  | $ | 382 |  |  | $ | 468 |
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] |
|  | As of June 30, 2021 |  |  | As of June 30, 2020 |
|  | Number of |  |  | Weighted Average |  |  | Number of |  |  | Weighted Average |
|  | Shares |  |  | Granted Price |  |  | Shares |  |  | Granted Price |
Outstanding at December 31 |  |  | 610,540 |  |  | $ | 18.25 |  |  |  | 636,086 |  |  | $ | 19.25 |
Granted |  |  | 20,604 |  |  |  | 23.29 |  |  |  | 70,588 |  |  |  | 11.92 |
Converted into shares |  |  | (2,422 | ) |  |  | 17.09 |  |  |  | (94,161 | ) |  |  | 20.27 |
Forfeited |  |  | (5,086 | ) |  |  | 17.55 |  |  |  | (494 | ) |  |  | 27.31 |
Outstanding at June 30 |  |  | 623,636 |  |  | $ | 18.43 |  |  |  | 612,019 |  |  | $ | 18.25 |
Vested at June 30 |  |  | 414,090 |  |  | $ | 18.76 |  |  |  | 375,692 |  |  | $ | 18.94 |

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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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