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Note 11 - Share-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jan. 01, 2001	Jan. 03, 2026	Dec. 28, 2024	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021	Dec. 29, 2018	Dec. 31, 2016	Dec. 27, 2015	Jan. 02, 2026	Dec. 31, 2025	Sep. 27, 2025	Dec. 30, 2023	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		10 years
Share-Based Payment Arrangement, Expense		$ 3,700	$ 2,900
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 6,000
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		1,926,670	1,137,220
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)		0	0
Share Price (in dollars per share)										$ 19.86
Employee Stock Purchase Plan [Member]
Share-Based Payment Arrangement, Expense		$ 300	$ 300
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date	85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate	10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee (in shares)	3,000
Additional Shares of Common Stock Reserved for Future Issuance (in shares)					400,000		300,000		300,000
Common Stock, Capital Shares Reserved for Future Issuance (in shares)					1,800,000		1,400,000		1,100,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)		35,545	45,611
Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised		$ 600	$ 700
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)												216,574
The 2014 Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		248,902
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)				2,975,000										625,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)				1,000,000		850,000		500,000
Dividends Payable		$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding		$ 8,400	12,500
The 2025 Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)											1,000,000
Dividends Payable		$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding		$ 8,400
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)		0
Performance-based Restricted Stock Units [Member]
Share-Based Payment Arrangement, Expense		$ 2,500	$ 1,600
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)		282,157
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 4,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding		$ 4,800
Performance-based Restricted Stock Units [Member] | The 2014 Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)		282,157	300,000										100,000
Time-based Restricted Stock Units [Member]
Share-Based Payment Arrangement, Expense		$ 1,200	$ 1,300
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		2,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested		$ 3,600
Time-based Restricted Stock Units [Member] | The 2014 Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)		179,037	289,421										376,618
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		1 year
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		5 years

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