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Note 2 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, |
|  | 2021 |  |  | 2020 |
Accrued liabilities: |  |  |  |  |  |  |  |
Accrued bonus |  | $ | 3,716 |  |  | $ | 3,747 |
Accrued vacation payable |  |  | 2,900 |  |  |  | 2,328 |
Foreign currency forward contracts |  |  | 661 |  |  |  | 1,150 |
Finance lease liabilities |  |  | 475 |  |  |  | 375 |
Workers compensation reserves |  |  | 366 |  |  |  | 237 |
Other |  |  | 16,380 |  |  |  | 8,977 |
Total accrued liabilities |  | $ | 24,498 |  |  | $ | 16,814 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Net income |  | $ | 11,523 |  |  | $ | 19,050 |  |  | $ | 27,902 |
Basic weighted-average common shares outstanding |  |  | 9,854 |  |  |  | 9,788 |  |  |  | 9,741 |
Effect of potentially dilutive common shares (1) |  |  | 74 |  |  |  | 85 |  |  |  | 38 |
Diluted weighted-average common shares outstanding |  |  | 9,928 |  |  |  | 9,873 |  |  |  | 9,779 |
Net income per common share |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.17 |  |  | $ | 1.95 |  |  | $ | 2.86 |
Diluted |  | $ | 1.16 |  |  | $ | 1.93 |  |  | $ | 2.85 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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