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Note 3 - Acquisitions (Details Textual) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Nov. 09, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Business Combination, Contingent Consideration, Liability, Current |  | $ 1,450 | $ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  | 219,878 | 850,729
ATEC Acquisition [Member] |  |  |
Business Combination, Consideration Transferred, Total | $ 2,200 |  |
Business Combination, Contingent Consideration, Liability, Current | $ 1,450 |  |
ATEC Acquisition [Member] | Class P Units [Member] | Chief Operating Officer [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 200,000 |  |
ATEC Acquisition [Member] | Class P Units [Member] | Chief Operating Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) | 3 years |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage | 20.00% |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6578-128477 + Details
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