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Note 12 - Acquisitions (Details Textual) - USD ($) |  |  |  |  |  |  |  | 2 Months Ended | 3 Months Ended | 5 Months Ended | 8 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 01, 2021 | May 03, 2021 | Oct. 01, 2020 | Sep. 30, 2020 | Nov. 12, 2019 | Aug. 08, 2019 | Apr. 01, 2019 | Dec. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Nov. 11, 2019 | Aug. 07, 2019
Goodwill, Ending Balance |  |  |  |  |  |  |  | $ 33,637,000 | $ 224,741,000 | $ 58,449,000 | $ 33,637,000 | $ 224,741,000 | $ 33,637,000 | $ 224,741,000 | $ 58,449,000 | $ 33,637,000 |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable |  |  |  |  |  |  |  |  |  |  |  |  |  | 264,718,000 | 0 | 0 |  |
Payment for Contingent Consideration Liability, Financing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  | (0) | 483,000 | (0) |  |
Sexton Acquisition [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | 530,502 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Equity Issuable Shares Held in Escrow Accounts for Post Closing Claims | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net, Total | $ 6,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Gross Receivables | 509,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Uncollectable Receivables | 17,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments Related to Previous Period |  |  |  |  |  |  |  |  | 198,000 |  |  |  |  |  |  |  |  |
Goodwill, Ending Balance | 28,470,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | 32,095,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total | 39,928,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value | $ 7,951,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  | 1,800,000 |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  | (1,000,000.0) |  |  |  |  |  |  |  |  |
Sexton Acquisition [Member] | Common Stock Issued to Acquire Participating Holders [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | 477,452 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sexton Acquisition [Member] | Common Stock Deposited Into Escrow [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | 53,050 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
GCI Acquisition [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) |  | 6,636,470 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Equity Issuable Shares Held in Escrow Accounts for Post Closing Claims |  | 9.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Gross Receivables |  | $ 7,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Uncollectable Receivables |  | 53,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments Related to Previous Period |  |  |  |  |  |  |  |  | $ 607,000 |  |  |  |  |  |  |  |  |
Goodwill, Ending Balance |  | $ 137,822,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares, Before Adjustments (in shares) |  | 6,646,870 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Stock Reduced During Period, Satisfy Note Receivable (in shares) |  | 10,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Escrow Shares, Period (Month) |  | 24 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable |  | $ 232,741,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total |  | $ 234,909,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  | 39,100,000 |  |  |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  | $ (19,600,000) |  |  |  |  |  |
GCI Acquisition [Member] | One GCI Stockholder [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Stock Reduced During Period, Satisfy Note Receivable (in shares) |  | 10,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, after Allowance for Credit Loss, Total |  | $ 374,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SciSafe Holdings, Inc [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) |  |  | 611,683 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Ending Balance |  |  | $ 24,943,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Share Price (in dollars per share) |  |  | $ 29.29 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  | $ 15,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Amount Held in Escrow |  |  | 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Notes Receivable |  |  |  | $ 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Indemnification Assets, Amount as of Acquisition Date |  |  | 130,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable |  |  | 17,916,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total |  |  | 36,526,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred |  |  | $ 3,663,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  | 1,800,000 |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  | $ (416,000) |  |  |  |  |  |  |  |
SciSafe Holdings, Inc [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) |  |  | 626,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CBS Acquisition [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Ending Balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,954,000 |
Payments to Acquire Businesses, Gross |  |  |  |  | $ 11,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Excluding Contingent Consideration |  |  |  |  | 15,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  | 11,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Cash Holdback Escrow to Satisfy Indemnification Claims |  |  |  |  | 550,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable |  |  |  |  | 4,000,000.0 |  |  |  |  |  |  |  |  | 0 | 0 | 4,000,000 |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Escrow Holdback |  |  |  |  | 3,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for Contingent Consideration Liability, Financing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,856,000 |
Business Combination, Consideration Transferred, Liabilities Incurred |  |  |  |  | 856,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  | 2,100,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  | $ 187,000 |  |  |  |  |  |  |  |  |  |
CBS Acquisition [Member] | Earning Payments Payable in Each Calendar Year 2020, 2021, 2022, 2023, and 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred |  |  |  |  | $ 15,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
SAVSU [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) |  |  |  |  |  | 1,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net, Total |  |  |  |  |  | $ 10,100,000 |  |  |  |  |  |  |  | 0 | 0 | 10,108,000 |  |
Goodwill, Ending Balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 21,037,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage |  |  |  |  |  | 44.00% |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Share Price (in dollars per share) |  |  |  |  |  | $ 18.12 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable |  |  |  |  |  | $ 19,932,000 |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 19,932,000 |  |
Business Combinations, Number of Shares Acquired (in shares) |  |  |  |  |  | 8,616 |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  | 55.60% |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, including Subsequent Acquisition, Percentage, Total |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total |  |  |  |  |  | $ 35,800,000 |  |  |  |  |  |  |  |  |  |  |  | $ 35,850,000
Equity Method Investments |  |  |  |  |  | 5,800,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value |  |  |  |  |  | 15,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination, Total |  |  |  |  |  | $ 35,800,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  | 692,000 |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  | $ (1,700,000) |  |  |  |  |  |  |
Astero [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Ending Balance |  |  |  |  |  |  | $ 9,515,000 |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  |  | 12,521,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  | 8,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Payment for Contingent Consideration Liability, Financing Activities |  |  |  |  |  |  | 483,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total |  |  |  |  |  |  | 13,941,000 |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Deferred Cash Payment |  |  |  |  |  |  | 4,500,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred |  |  |  |  |  |  | 1,491,000 |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  |  |  |  |  |  | 1,100,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  |  | 1,200,000 |  |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  |  |  |  |  |  |  |  |  |  |  | $ (1,500,000) |  |  |  |  |
Astero [Member] | Maximum Potential Earnout Payment for 2019, 2020, and 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred |  |  |  |  |  |  | 3,500,000 |  |  |  |  |  |  |  |  |  |  |
Astero [Member] | Earnout Payment for Calendar Year 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred |  |  |  |  |  |  | $ 5,000,000.0 |  |  |  |  |  |  |  |  |  |  |

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- Definition Gross amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References No definition available. + Details
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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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