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DEBT (Schedule of Long Term Debt) (Details) - Credit Agreement - Long-term Debt - USD ($) | Jan. 21, 2020 | Dec. 29, 2019 | Dec. 30, 2018
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BMO Harris Bank, N.A. |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross, initial borrowing |  | $ 7,500,000 |
Long-term debt, gross, second borrowing amount |  | 0 |
Long-term debt, gross |  | $ 7,500,000 |
Texas Capital Bank, National Association (TCB) |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, gross, initial borrowing |  |  | $ 1,121,000
Interest rate, initial borrowing amount |  | 5.25% | 6.50%
Long-term debt, gross, second borrowing amount |  |  | $ 9,000,000
Interest rate, second borrowing amount |  | 0.00% | 5.41%
Long-term debt, gross |  |  | $ 10,121,000
Subsequent Event | Texas Capital Bank, National Association (TCB) |  |  |
Debt Instrument [Line Items] |  |  |
Effective percentage | 3.16% |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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