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Note 8 - Common Stock Warrants and Earn-out Liability (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended			6 Months Ended
	Jul. 16, 2021	Apr. 30, 2022	Jul. 02, 2023	Jul. 03, 2022	Apr. 03, 2022	Jul. 02, 2023	Jul. 03, 2022	Dec. 31, 2022	Oct. 09, 2021
Class of Warrant or Right, Outstanding (in shares)									14,666,644
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)									1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)									$ 11.50
Warrants and Rights Outstanding, Term (Year)									5 years
Warrant Liability			$ 7,725			$ 7,725		$ 4,272
Fair Value Adjustment of Warrants			2,017	$ (23,168)		3,452	$ (20,941)
Business Combination, Contingent Consideration, Liability, Noncurrent			2,565			2,565		1,176
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability			961	(4,234)		1,389	(1,853)
Empower Sponsor Holdings LLC [Member]
Business Combination, Contingent Consideration, Liability, Noncurrent			2,565			2,565		$ 1,176
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability			$ 961	$ (4,234)		$ 1,389	$ (1,853)
Empower Sponsor Holdings LLC [Member] | Earn Out Shares [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	2,187,500
Empower Sponsor Holdings LLC [Member] | Tranche One [Member]
Stock Issued During Period, Shares, Acquisitions (in shares)					1,093,750
Stock Issued During Period, Value, Acquisitions					$ 14,689
Public Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)									9,999,977
Stock Issued During Period, Shares, Warrants Exercised (in shares)		33,333
Public Warrants [Member] | Measurement Input, Share Price [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)									$ 0.01
Share Price (in dollars per share)									18.00
Public Warrants [Member] | Measurement Input Share Price1 [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)									0.10
Share Price (in dollars per share)									$ 10.00
Private Placement Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)									4,666,667

X

- Definition

Number of shares issued as a result of exercises of warrants during this period.

+ References

No definition available.

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- Definition

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+ References

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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
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.

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Exercise price per share or per unit of warrants or rights outstanding.

+ References

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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

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- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

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