XML 38 R29.htm IDEA: XBRL DOCUMENT
v3.22.2

Note 1 - Basis of Presentation (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disposal Group, Operating Expense | $ 5,194 | $ 0 | $ 5,194 | $ 0
Goodwill, Written Off |  |  | 630 |
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations [Member] | Manufacturing Facility in Japan [Member] |  |  |  |
Disposal Group, Operating Expense | 5,200 |  | 5,200 |
Disposal Group, Employee Severance, Operating Expense | 2,200 |  | 2,200 |
Disposal Group, Write-down of Fixed Assets, Operating Expense | 1,200 |  | 1,200 |
Disposal Group, Facility-related Charges, Operating Expense | 900 |  | 900 |
Goodwill, Written Off | 600 |  | 600 |
Disposal Group, Other Closure Related Charges, Operating Expense | $ 300 |  | $ 300 |

X
- Definition Amount of employee severance, operating expense, attributable to disposal group. + References No definition available. + Details
Name: | prlb_DisposalGroupEmployeeSeveranceOperatingExpense
Namespace Prefix: | prlb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of facility-related charges, operating expense, attributable to disposal group. + References No definition available. + Details
Name: | prlb_DisposalGroupFacilityrelatedChargesOperatingExpense
Namespace Prefix: | prlb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of operating expense from disposal group. + References No definition available. + Details
Name: | prlb_DisposalGroupOperatingExpense
Namespace Prefix: | prlb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of other closure related charges, operating expense, attributable to disposal group.. + References No definition available. + Details
Name: | prlb_DisposalGroupOtherClosureRelatedChargesOperatingExpense
Namespace Prefix: | prlb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of write down of fixed assets, operating expense, attributable to disposal group. + References No definition available. + Details
Name: | prlb_DisposalGroupWritedownOfFixedAssetsOperatingExpense
Namespace Prefix: | prlb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of write-off of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References No definition available. + Details
Name: | prlb_GoodwillWrittenOff
Namespace Prefix: | prlb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupDisposedOfByMeansOtherThanSaleNotDiscontinuedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=prlb_ManufacturingFacilityInJapanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |