XML 41 R2.htm IDEA: XBRL DOCUMENT
v3.25.1

Pay vs Performance Disclosure - USD ($) | 12 Months Ended
--- | ---
Dec. 27, 2024 | Dec. 29, 2023 | Dec. 30, 2022 | Dec. 31, 2021 | Jan. 01, 2021
Pay vs Performance Disclosure |  |  |  |  |
Pay vs Performance Disclosure, Table | Pay vs. Performance The disclosure included in this section is prescribed by SEC rules and does not necessarily align with how the Company or the CC view the link between the Company’s performance and NEO pay. For additional information about our pay-for-performance philosophy and how we align NEO compensation with Company performance, refer to the “Compensation Discussion and Analysis” section above. Required Tabular Disclosure of Pay Versus Performance The following table provides information regarding the relationship between “compensation actually paid” to our Principal Executive Officer (“PEO”), and average compensation actually paid to our other NEOs, and certain financial performance of the Company. The amounts set forth below under the headings “Compensation Actually Paid to PEO” and “Average Compensation Actually Paid to Non-PEO NEOs” have been calculated in a manner consistent with Item 402(v) of Regulation S-K. Use of the term “compensation actually paid” is required by the SEC’s rules and as a result of the calculation methodology required by the SEC, such amounts differ from compensation actually received by the individuals and the compensation decisions described in the “Compensation Discussion and Analysis” section above. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Value of Initial Fixed $100 Investment Based on | ​ | ​ | ​ | ​ | ​ | ​
Year |  | Summary Compensation Table Total for PEO(1) |  | Compensation Actually Paid to PEO(2) |  | Average Summary Compensation Table Total for non-PEO NEOs(3) |  | Average Compensation Actually Paid to Non-PEO NEOs(2) |  | Total Shareholder Return(4) |  | Peer Group Total Shareholder Return(4) |  | Net Income |  | Company Selected Measure - Adjusted EBITDA(5)
2024 | ​ | $ | 2,400,089 | ​ | $ | 4,997,113 | ​ | $ | 916,296 | ​ | $ | 1,621,300 | ​ | $ | 23.02 | ​ | $ | (25.64) | ​ | $ | 22,570,000 | ​ | $ | 56,751,000
2023 | ​ | $ | 1,577,003 | ​ | $ | 2,679,260 | ​ | $ | 744,688 | ​ | $ | 1,022,936 | ​ | $ | (31.13) | ​ | $ | (33.64) | ​ | $ | 10,926,000 | ​ | $ | 45,695,000
2022 | ​ | $ | 2,086,033 | ​ | $ | (1,401,302) | ​ | $ | 895,360 | ​ | $ | (95,303) | ​ | $ | (42.81) | ​ | $ | (39.64) | ​ | $ | (8,448,000) | ​ | $ | 23,276,000
2021 | ​ | $ | 2,990,848 | ​ | $ | 959,656 | ​ | $ | 757,809 | ​ | $ | 270,012 | ​ | $ | 12.78 | ​ | $ | 102.49 | ​ | $ | (8,417,000) | ​ | $ | 27,526,000
2020 | ​ | $ | 2,190,963 | ​ | $ | 6,791,079 | ​ | $ | 893,569 | ​ | $ | 2,130,191 | ​ | $ | 33.61 | ​ | $ | 41.27 | ​ | $ | (14,496,000) | ​ | $ | 28,126,000
| (1) | Mr. Bieber was our principal executive officer for the year 2024. Dr. Brisbin was our principal executive officer for the years 2023, 2022, 2021 and 2020.
| (2) | Amounts presented under “Compensation Actually Paid” do not reflect actual amounts of compensation paid to the PEO and other Non-PEO NEOs; rather, “Compensation Actually Paid” amounts are calculated in accordance with Item 402(v) of Regulation S-K. The following table presents the detail of amounts deducted and added to the Summary Compensation Table total to calculate “Compensation Actually Paid”. There are no adjustments for pension or dividend payments as the Company does not have supplemental executive retirement plans and does not pay dividends. The valuation assumptions used to calculate fair values of equity awards did not materially differ from those disclosed at the time of grant. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2024
​ |  | PEO |  | Average of Non-PEO NEOs
Total Compensation as reported on Summary Compensation Table | ​ | $ | 2,400,089 | ​ | $ | 916,296
Subtract pension values reported in Summary Compensation Table | ​ | $ | — | ​ | $ | —
Subtract the fair value of stock awards reported in Summary Compensation Table | ​ | $ | (1,102,000) | ​ | $ | (264,480)
Add pension value attributable to current year’s service and any change in pension value attributable to plan amendments made in the current year | ​ | $ | — | ​ | $ | —
Add fair value as of end of covered year of equity awards granted in covered year that are unvested and outstanding at end of covered year | ​ | $ | 2,832,699 | ​ | $ | 679,858
Add dividends paid on unvested shares/share units | ​ | $ | — | ​ | $ | —
Add change in fair value from end of prior year to end of covered year for equity awards granted in prior years that were outstanding and unvested at end of covered year | ​ | $ | 670,431 | ​ | $ | 253,878
Add equity awards that are granted and vest in the covered year, the fair value as of the vesting date | ​ | $ | — | ​ | $ | —
Add change in fair value from end of prior year to vesting date for equity awards granted in prior years that vested during covered year | ​ | $ | 195,894 | ​ | $ | 35,748
Subtract equity awards granted in prior years that are forfeited in covered year, the fair value of such equity awards as of the end of the prior year | ​ | $ | — | ​ | $ | —
Compensation Actually Paid | ​ | $ | 4,997,113 | ​ | $ | 1,621,300
​
| (3) | In 2024, our other NEOs consisted of Creighton K. Early, Chief Financial Officer, and Micah H. Chen, General Counsel. In 2023 and 2022, our other
NEOs consisted of Michael A. Bieber, President, Creighton K. Early, Chief Financial Officer, Micah H. Chen, General Counsel, and Paul Whitelaw, former Senior Vice President, Business Development. In 2021, our other NEOs consisted of Michael A. Bieber, President, Creighton K. Early, Chief Financial Officer, Stacy B. McLaughlin, former Chief Financial Officer, Micah H. Chen, General Counsel, and Paul Whitelaw, former Senior Vice President, Business Development. In 2020, our other NEOs consisted of Michael A. Bieber, President, Stacy B. McLaughlin, former Chief Financial Officer, Daniel Chow, former Chief Operating Officer, and Adam C. Procell, former Chief Strategy Officer.
| (4) | Total shareholder return assumes that $100 was invested on the measurement date in Willdan Group, Inc. common stock and the peer group as set forth below. This shareholder return assumes reinvestment of all dividends. As part of our bi-annual independent compensation consultant study, our peer group is analyzed and updated to (i) replace peers that have have been acquired and (ii) ensure the companies in our peer group continue to be comparable in size, business profile, and other factors, in order to be appropriate for the compensation decision-making process. The customized peer group for 2024 consists of: American Superconductor Corporation, Ameresco, Inc., Bowman Consulting Group Ltd., C3.ai, Inc., Exponent, Inc., ICF International, Inc., Iteris, Inc., Limbach Holdings, Inc., LSI Industries, Inc., Montrose Environmental Group, Inc., NV5 Global, Inc., Quest Resource Holding Corporation, RCM Technologies, Inc., Resources Connection, Inc., and Stem, Inc. The peer group total shareholder return for 2024 utilizing the peer group of 2023 is $(35.19). The customized peer group for 2023 and 2022 consists of: American Superconductor Corporation, Atlas Technical Consultants, Inc., Bowman Consulting Group Ltd., C3.ai, Inc., Charah Solutions, Inc., Exponent, Inc., FTC Solar, Inc., ICF International, Inc., Limbach Holdings, Inc., Montrose Environmental Group, Inc., NV5 Global, Inc., Orion Energy Systems, Inc., RCM Technologies, Inc., Resources Connection, Inc., and Stem, Inc. The customized peer group for 2021 and 2020 consists of: Ameresco, Inc., Charah Solutions, Inc., Cypress Environmental Partners, L.P., Exponent, Inc., Hill International, Inc., Limbach Holdings, Inc., NV5 Global, Inc., RCM Technologies, Inc., and Resources Connection, Inc.
| (5) | The Company has determined that adjusted EBITDA from operations is the financial performance measure that, in the Company’s assessment, represents the most important performance measure (that is not otherwise required to be disclosed in the table) used by the Company to link compensation actually paid to the Company’s NEOs for the most recently completed fiscal year. Adjusted EBITDA is a non-GAAP measure and it means the Company’s net income (loss) as determined in accordance with GAAP, plus (1) interest expense, (2) income tax expense (benefit), (3) stock-based compensation, (4) interest accretion, (5) depreciation and amortization, (6) transaction costs, (7) (gain) loss on sale of equipment, and (8) plus or minus the effect of any extraordinary item or extraordinary transaction. See Appendix B for the Company’s reconciliation of Net Income to Adjusted EBITDA.
Company Selected Measure Name | adjusted EBITDA |  |  |  |
Named Executive Officers, Footnote |
| (1) | Mr. Bieber was our principal executive officer for the year 2024. Dr. Brisbin was our principal executive officer for the years 2023, 2022, 2021 and 2020.
| (3) | In 2024, our other NEOs consisted of Creighton K. Early, Chief Financial Officer, and Micah H. Chen, General Counsel. In 2023 and 2022, our other
NEOs consisted of Michael A. Bieber, President, Creighton K. Early, Chief Financial Officer, Micah H. Chen, General Counsel, and Paul Whitelaw, former Senior Vice President, Business Development. In 2021, our other NEOs consisted of Michael A. Bieber, President, Creighton K. Early, Chief Financial Officer, Stacy B. McLaughlin, former Chief Financial Officer, Micah H. Chen, General Counsel, and Paul Whitelaw, former Senior Vice President, Business Development. In 2020, our other NEOs consisted of Michael A. Bieber, President, Stacy B. McLaughlin, former Chief Financial Officer, Daniel Chow, former Chief Operating Officer, and Adam C. Procell, former Chief Strategy Officer. |  |  |  |
Peer Group Issuers, Footnote |
| (4) | Total shareholder return assumes that $100 was invested on the measurement date in Willdan Group, Inc. common stock and the peer group as set forth below. This shareholder return assumes reinvestment of all dividends. As part of our bi-annual independent compensation consultant study, our peer group is analyzed and updated to (i) replace peers that have have been acquired and (ii) ensure the companies in our peer group continue to be comparable in size, business profile, and other factors, in order to be appropriate for the compensation decision-making process. The customized peer group for 2024 consists of: American Superconductor Corporation, Ameresco, Inc., Bowman Consulting Group Ltd., C3.ai, Inc., Exponent, Inc., ICF International, Inc., Iteris, Inc., Limbach Holdings, Inc., LSI Industries, Inc., Montrose Environmental Group, Inc., NV5 Global, Inc., Quest Resource Holding Corporation, RCM Technologies, Inc., Resources Connection, Inc., and Stem, Inc. The peer group total shareholder return for 2024 utilizing the peer group of 2023 is $(35.19). The customized peer group for 2023 and 2022 consists of: American Superconductor Corporation, Atlas Technical Consultants, Inc., Bowman Consulting Group Ltd., C3.ai, Inc., Charah Solutions, Inc., Exponent, Inc., FTC Solar, Inc., ICF International, Inc., Limbach Holdings, Inc., Montrose Environmental Group, Inc., NV5 Global, Inc., Orion Energy Systems, Inc., RCM Technologies, Inc., Resources Connection, Inc., and Stem, Inc. The customized peer group for 2021 and 2020 consists of: Ameresco, Inc., Charah Solutions, Inc., Cypress Environmental Partners, L.P., Exponent, Inc., Hill International, Inc., Limbach Holdings, Inc., NV5 Global, Inc., RCM Technologies, Inc., and Resources Connection, Inc.
PEO Total Compensation Amount | $ 2,400,089 | $ 1,577,003 | $ 2,086,033 | $ 2,990,848 | $ 2,190,963
PEO Actually Paid Compensation Amount | $ 4,997,113 | 2,679,260 | (1,401,302) | 959,656 | 6,791,079
Adjustment To PEO Compensation, Footnote |
| (2) | Amounts presented under “Compensation Actually Paid” do not reflect actual amounts of compensation paid to the PEO and other Non-PEO NEOs; rather, “Compensation Actually Paid” amounts are calculated in accordance with Item 402(v) of Regulation S-K. The following table presents the detail of amounts deducted and added to the Summary Compensation Table total to calculate “Compensation Actually Paid”. There are no adjustments for pension or dividend payments as the Company does not have supplemental executive retirement plans and does not pay dividends. The valuation assumptions used to calculate fair values of equity awards did not materially differ from those disclosed at the time of grant. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2024
​ |  | PEO |  | Average of Non-PEO NEOs
Total Compensation as reported on Summary Compensation Table | ​ | $ | 2,400,089 | ​ | $ | 916,296
Subtract pension values reported in Summary Compensation Table | ​ | $ | — | ​ | $ | —
Subtract the fair value of stock awards reported in Summary Compensation Table | ​ | $ | (1,102,000) | ​ | $ | (264,480)
Add pension value attributable to current year’s service and any change in pension value attributable to plan amendments made in the current year | ​ | $ | — | ​ | $ | —
Add fair value as of end of covered year of equity awards granted in covered year that are unvested and outstanding at end of covered year | ​ | $ | 2,832,699 | ​ | $ | 679,858
Add dividends paid on unvested shares/share units | ​ | $ | — | ​ | $ | —
Add change in fair value from end of prior year to end of covered year for equity awards granted in prior years that were outstanding and unvested at end of covered year | ​ | $ | 670,431 | ​ | $ | 253,878
Add equity awards that are granted and vest in the covered year, the fair value as of the vesting date | ​ | $ | — | ​ | $ | —
Add change in fair value from end of prior year to vesting date for equity awards granted in prior years that vested during covered year | ​ | $ | 195,894 | ​ | $ | 35,748
Subtract equity awards granted in prior years that are forfeited in covered year, the fair value of such equity awards as of the end of the prior year | ​ | $ | — | ​ | $ | —
Compensation Actually Paid | ​ | $ | 4,997,113 | ​ | $ | 1,621,300
Non-PEO NEO Average Total Compensation Amount | $ 916,296 | 744,688 | 895,360 | 757,809 | 893,569
Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,621,300 | 1,022,936 | (95,303) | 270,012 | 2,130,191
Adjustment to Non-PEO NEO Compensation Footnote |
| (2) | Amounts presented under “Compensation Actually Paid” do not reflect actual amounts of compensation paid to the PEO and other Non-PEO NEOs; rather, “Compensation Actually Paid” amounts are calculated in accordance with Item 402(v) of Regulation S-K. The following table presents the detail of amounts deducted and added to the Summary Compensation Table total to calculate “Compensation Actually Paid”. There are no adjustments for pension or dividend payments as the Company does not have supplemental executive retirement plans and does not pay dividends. The valuation assumptions used to calculate fair values of equity awards did not materially differ from those disclosed at the time of grant. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2024
​ |  | PEO |  | Average of Non-PEO NEOs
Total Compensation as reported on Summary Compensation Table | ​ | $ | 2,400,089 | ​ | $ | 916,296
Subtract pension values reported in Summary Compensation Table | ​ | $ | — | ​ | $ | —
Subtract the fair value of stock awards reported in Summary Compensation Table | ​ | $ | (1,102,000) | ​ | $ | (264,480)
Add pension value attributable to current year’s service and any change in pension value attributable to plan amendments made in the current year | ​ | $ | — | ​ | $ | —
Add fair value as of end of covered year of equity awards granted in covered year that are unvested and outstanding at end of covered year | ​ | $ | 2,832,699 | ​ | $ | 679,858
Add dividends paid on unvested shares/share units | ​ | $ | — | ​ | $ | —
Add change in fair value from end of prior year to end of covered year for equity awards granted in prior years that were outstanding and unvested at end of covered year | ​ | $ | 670,431 | ​ | $ | 253,878
Add equity awards that are granted and vest in the covered year, the fair value as of the vesting date | ​ | $ | — | ​ | $ | —
Add change in fair value from end of prior year to vesting date for equity awards granted in prior years that vested during covered year | ​ | $ | 195,894 | ​ | $ | 35,748
Subtract equity awards granted in prior years that are forfeited in covered year, the fair value of such equity awards as of the end of the prior year | ​ | $ | — | ​ | $ | —
Compensation Actually Paid | ​ | $ | 4,997,113 | ​ | $ | 1,621,300
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |  |
Tabular List, Table | As described in detail in the CD&A, the Company’s executive compensation program consists of several compensation elements reflecting the Company’s pay-for-performance philosophy. The most important financial performance measures used to link compensation actually paid to the Company’s NEOs with the Company’s performance for 2024 are as follows: § Adjusted EBITDA § Adjusted Diluted Earnings per Share § Net Revenue § Relative Total Shareholder Return ​ |  |  |  |
Total Shareholder Return Amount | $ 23.02 | (31.13) | (42.81) | 12.78 | 33.61
Peer Group Total Shareholder Return Amount | (25.64) | (33.64) | (39.64) | 102.49 | 41.27
Net Income (Loss) | $ 22,570,000 | $ 10,926,000 | $ (8,448,000) | $ (8,417,000) | $ (14,496,000)
Company Selected Measure Amount | 56,751,000 | 45,695,000 | 23,276,000 | 27,526,000 | 28,126,000
PEO Name | Mr. Bieber |  |  |  |
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted EBITDA |  |  |  |
Non-GAAP Measure Description |
| (5) | The Company has determined that adjusted EBITDA from operations is the financial performance measure that, in the Company’s assessment, represents the most important performance measure (that is not otherwise required to be disclosed in the table) used by the Company to link compensation actually paid to the Company’s NEOs for the most recently completed fiscal year. Adjusted EBITDA is a non-GAAP measure and it means the Company’s net income (loss) as determined in accordance with GAAP, plus (1) interest expense, (2) income tax expense (benefit), (3) stock-based compensation, (4) interest accretion, (5) depreciation and amortization, (6) transaction costs, (7) (gain) loss on sale of equipment, and (8) plus or minus the effect of any extraordinary item or extraordinary transaction. See Appendix B for the Company’s reconciliation of Net Income to Adjusted EBITDA.
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted Diluted Earnings per Share |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Net Revenue |  |  |  |
Measure:: 4 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Relative Total Shareholder Return |  |  |  |
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ (1,102,000) |  |  |  |
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 2,832,699 |  |  |  |
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 670,431 |  |  |  |
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 195,894 |  |  |  |
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (264,480) |  |  |  |
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 679,858 |  |  |  |
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 253,878 |  |  |  |
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ 35,748 |  |  |  |

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iii + Details
Name: | ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_MeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_NonGaapMeasureDescriptionTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupIssuersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupTotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTable
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 6 + Details
Name: | ecd_TabularListTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnVsPeerGroupTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 60 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476176/805-60-65-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478666/740-323-65-2 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482765/220-10-50-6 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-3 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-1 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480175/815-40-65-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-4 Reference 17: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479105/946-220-45-7 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(9)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 23: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 60B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-7 Reference 34: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 35: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A Reference 36: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B Reference 37: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_MeasureAxis=1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=2
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=3
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=4
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |