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SHARE-BASED COMPENSATION - Summary of Warrant Activity (Details) - USD ($) $ / shares in Units, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 29, 2019 | Dec. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Number of warrants, exercisable |  | 93,216
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Weighted Average Exercise Price [Roll Forward] |  |
Exercisable warrants, weighted average exercise price (in dollars per share) |  | $ 11.59
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Intrinsic Value [Roll Forward] |  |
Options converted | 38,614 |
Warrant |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares issued in period | 423 |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Number of warrants, outstanding, beginning balance (in shares) | 93,216 |
Number of warrants, exercised (in shares) | 1,020 |
Number of warrants, outstanding, ending balance (in shares) | 92,196 | 93,216
Number of warrants, exercisable | 92,196 |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Weighted Average Exercise Price [Roll Forward] |  |
Outstanding warrants, weighted average exercise price, beginning balance (in dollars per share) | $ 11.59 |
Outstanding warrants, weighted average exercise price (in dollars per share) | 14.86 |
Outstanding warrants, weighted average exercise price, ending balance (in dollars per share) | 11.56 | $ 11.59
Exercisable warrants, weighted average exercise price (in dollars per share) | $ 11.56 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |
Warrants outstanding, weighted average remaining contractual life | 9 months 18 days | 1 year 3 months 18 days
Exercisable warrants, weighted average remaining contractual life | 9 months 18 days | 1 year 3 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Intrinsic Value [Roll Forward] |  |
Outstanding warrants, intrinsic value, beginning balance | $ 805 |
Outstanding warrants, intrinsic value, ending balance | 703 | $ 805
Exercisable warrants, intrinsic price | $ 703 | $ 805
Options converted | 1,020 |
Employee Stock Option |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares issued in period | 16,694 |

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- Definition The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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