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Note A - Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended | 18 Months Ended |
--- | --- | --- | ---
Jan. 01, 2022 USD ($) | Jan. 02, 2021 USD ($) | Dec. 28, 2019 USD ($) | Jun. 28, 2020 USD ($) | Jan. 02, 2022 USD ($)
Number of Geographic Regions | 2 |  |  |  |
Number of Sub Geographical Regions | 3 |  |  |  |
Goodwill, Impairment Loss | $ 0 | $ 0 | $ 0 |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | 0 | 0 |  | $ 0 |
Equity Securities without Readily Determinable Fair Value, Amount | 0 | 0 |  |  |
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount | 0 | 0 |  |  |
Life Insurance, Corporate or Bank Owned, Amount | 382,000 |  |  |  |
Deferred Compensation Liability, Classified, Noncurrent, Total | 390,000 |  |  |  |
Minimum Amount of Individual Claims Before Insurance Reimbursement | 175,000 |  |  |  |
Minimum Amount of Projected Aggregate Claims Before Insurance Reimbursement | 13,390,000 |  |  |  |
Self-insurance Expense | 12,349,000 | 11,798,000 | 11,846,000 |  |
Derivative, Notional Amount | 98,684,000 |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 108,221,000 |  |  |  |
Contract with Customer, Asset, after Allowance for Credit Loss, Total |  | $ 0 |  |  | $ 0
Product Return, First Time Order, Duration of Retrun (Day) |  | 30 days |  |  |
Product Return, First Time Order, Percentage Refunded |  | 100.00% |  |  |
Product Return, Percentage Refunded |  | 100.00% |  |  |
Product Return, Percentage of Net Sales | 0.60% | 0.70% |  |  |
Advertising Expense | $ 12,399,000 | $ 9,853,000 | 11,615,000 |  |
Research and Development Expense, Total | 11,112,000 | 10,633,000 | 10,259,000 |  |
Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative, Notional Amount | 98,930,000 |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net, Total | 0 | 0 |  |  |
Foreign Exchange Option [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative, Notional Amount |  | 90,000,000 | 110,000,000 |  |
Derivative, Loss on Derivative | 1,555,000 |  |  |  |
Derivative, Gain on Derivative |  | 846,000 | $ 276,000 |  |
Other Assets [Member] |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Amount |  | 20,000,000 |  |  |
Amounts Receivable from Credit Card Processors [Member] |  |  |  |  |
Cash Equivalents, at Carrying Value, Total | 11,123 | 15,424 |  |  |
Restricted Cash Deposits in China [Member] |  |  |  |  |
Restricted Cash and Cash Equivalents, Noncurrent, Total | 3,146 | 3,062 |  |  |
Fair Value, Nonrecurring [Member] |  |  |  |  |
Nonfinancial Assets, Fair Value Disclosure | $ 0 | $ 0 |  |  |

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 730 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6472174&loc=d3e58812-109433 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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