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DEBT - Borrowing Under Term Loan (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Apr. 01, 2018 | Dec. 30, 2018
Debt Instrument [Line Items] |  |  |
Principal payments on long-term debt | $ 1,837,500 | $ 612,500 |
Texas Capital Bank, National Association (TCB) | Revolving Credit Facility | Credit Agreement |  |  |
Debt Instrument [Line Items] |  |  |
Long-Term Debt, Gross, Initial Borrowing | $ 83,500 |  | $ 1,121,000
Debt Instrument, Interest Rate, Effective Percentage for Initial Borrowing Amount | 6.50% |  | 6.50%
Long-Term Debt, Gross, Second Borrowing Amount | $ 6,500,000 |  | $ 6,500,000
Debt Instrument, Interest Rate, Effective Percentage for Second Borrowing Amount | 5.48% |  | 5.41%
Long-Term Debt, Gross, Third Borrowing Amount | $ 1,700,000 |  | $ 2,500,000
Debt Instrument, Interest Rate, Effective Percentage for Third Borrowing Amount | 5.49% |  | 5.41%
Long-term debt, less current portion | $ 8,283,500 |  | $ 10,121,000

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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=6879938&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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