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Restatement - Schdeule of Cash Flow Statement Table (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 01, 2022 | Jul. 02, 2022 | Oct. 02, 2021 | Jul. 03, 2021 | Jul. 02, 2022 | Jul. 03, 2021 | Oct. 01, 2022 | Oct. 02, 2021 | Dec. 31, 2022 | Jan. 01, 2022
OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | $ (4,477,000) |  | $ (5,445,000) | $ 10,992,000 | $ (16,887,000)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  | 2,090,000 |  | 3,136,000 | 557,000 | 4,192,000
Amortization of debt issuance costs |  |  |  |  |  | 0 |  |  | 31,000 | 9,000
Stock based compensation expense |  |  |  |  |  | 180,000 |  | 274,000 | 5,000 | 303,000
Accretion of note receivable discount |  |  |  |  |  | 0 |  |  | (387,000) | 0
Gain on legal settlement |  |  |  |  |  | 0 |  |  | 1,009,000 | 0
Gain on Payroll Protection Program loan forgiveness |  |  | $ 0 | $ 0 |  | (1,872,000) |  | (1,872,000) | 0 | 1,872,000
Gain on settlement of vendor advance payments |  |  | (11,000) | (131,000) |  | (941,000) |  | (952,000) | 0 | 952,000
Gain on reversal of contingency loss |  |  |  |  |  | 0 |  |  | (637,000) | 0
Gains and losses on sale of GeoTraq |  |  |  |  |  |  |  |  |  |
Unrealized loss on marketable securities |  |  | 0 | 0 |  | 0 |  | 0 | 631,000 | 0
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  |  | (204,000) |  | (1,931,000) | (3,702,000) | (620,000)
Income taxes receivable |  |  |  |  |  | 173,000 |  | 196,000 | 0 | 196,000
Prepaid expenses and other current assets |  |  |  |  |  | 110,000 |  | (71,000) | (653,000) | 287,000
Inventories |  |  |  |  |  | 303,000 |  | 478,000 | (738,000) | (421,000)
Right of use assets |  |  |  |  |  | (681,000) |  | (995,000) |  |
Lease liability |  |  |  |  |  | 650,000 |  | 971,000 |  |
Accounts payable and accrued expenses |  |  |  |  |  | 2,485,000 |  | 2,840,000 | (265,000) | 1,842,000
Deposits and other Assets |  |  |  |  |  | (123,000) |  | (114,000) |  |
Net cash used in operating activities |  |  |  |  |  | (2,307,000) |  | (3,485,000) | (3,056,000) | (5,292,000)
INVESTING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Purchases of property and equipment |  |  |  |  |  | (1,458,000) |  | (1,530,000) | (808,000) | (1,659,000)
Purchase of intangible assets |  |  |  |  |  | (65,000) |  | (65,000) | (701,000) | (65,000)
Net cash used in investing activities |  |  |  |  |  | (1,523,000) |  | (1,595,000) | (1,509,000) | (1,721,000)
FINANCING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Proceeds from equity financing, net |  |  |  |  |  | 5,544,000 |  | 5,544,000 | 0 | 5,544,000
Proceeds from issuance of short term notes payable |  |  |  |  |  |  |  | 538,000 | 708,000 | 795,000
Proceeds from stock option exercise |  |  |  |  |  | 27,000 |  | 27,000 | 0 | 27,000
Proceeds from note payable |  |  |  |  |  | 1,835,000 |  | 1,835,000 | 16,837,000 | 1,835,000
Payment on related party note |  |  |  |  |  | 0 |  |  | (162,000) | 0
Payments on notes payable |  |  |  |  |  | (59,000) |  | (58,000) | (12,682,000) | (182,000)
Payments on short term notes payable |  |  |  |  |  | (144,000) |  | (323,000) | (722,000) | (651,000)
Net cash provided by financing activities |  |  |  |  |  | 7,203,000 |  | 7,563,000 | 3,979,000 | 7,368,000
Effect of changes in exchange rate on cash and cash equivalents |  |  |  |  |  | (42,000) |  | (42,000) | (4,000) | (29,000)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS |  |  |  |  |  | 3,331,000 |  | 2,441,000 | (590,000) | 326,000
CASH AND CASH EQUIVALENTS, beginning of period |  |  | 3,710,000 |  | $ 705,000 | 379,000 | $ 705,000 | 379,000 | 705,000 | 379,000
CASH AND CASH EQUIVALENTS, end of period |  |  | $ 2,820,000 | $ 3,710,000 |  | 3,710,000 |  | 2,820,000 | 115,000 | 705,000
Supplemental cash flow disclosures: |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  |  | 84,000 |  | 146,000 | 407,000 | 475,000
Income taxes paid, net |  |  |  |  |  | 28,000 |  | 28,000 | 108,000 | 40,000
Right to use asset - operating leases capitalized |  |  |  |  |  | 1,244,000 |  | 1,815,000 |  |
Previously Reported |  |  |  |  |  |  |  |  |  |
OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  | 11,898,000 |  | 9,824,000 |  |  |
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  | 270,000 |  | 347,000 |  |  |
Amortization of debt issuance costs |  |  |  |  | 7,000 |  | 10,000 |  |  |
Stock based compensation expense |  |  |  |  | 4,000 |  | 4,000 |  |  |
Accretion of note receivable discount |  |  |  |  | (27,000) |  | (95,000) |  |  |
Gain on legal settlement |  |  |  |  | (115,000) |  | (115,000) |  |  |
Gain on Payroll Protection Program loan forgiveness | $ 0 | $ 0 |  |  | 0 |  | 0 |  |  |
Gain on settlement of vendor advance payments | 0 | 0 |  |  | 0 |  | 0 |  |  |
Gain on reversal of contingency loss |  |  |  |  | (637,000) |  | (637,000) |  |  |
Gains and losses on sale of GeoTraq |  |  |  |  | (12,091,000) |  | (12,091,000) |  |  |
Unrealized loss on marketable securities | 270,000 | 376,000 |  |  | 376,000 |  | 646,000 |  |  |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  | (53,000) |  | (2,614,000) |  |  |
Income taxes receivable |  |  |  |  | (12,000) |  |  |  |  |
Prepaid expenses and other current assets |  |  |  |  | 554,000 |  | 176,000 |  |  |
Inventories |  |  |  |  | 610,000 |  | 689,000 |  |  |
Right of use assets |  |  |  |  | (597,000) |  | 54,000 |  |  |
Lease liability |  |  |  |  | 595,000 |  |  |  |  |
Accounts payable and accrued expenses |  |  |  |  | 713,000 |  | 1,440,000 |  |  |
Deposits and other Assets |  |  |  |  | (6,000) |  | (29,000) |  |  |
Net cash used in operating activities |  |  |  |  | 1,489,000 |  | (2,391,000) |  |  |
INVESTING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Purchases of property and equipment |  |  |  |  | (721,000) |  | (736,000) |  |  |
Purchase of intangible assets |  |  |  |  | (189,000) |  | (214,000) |  |  |
Net cash used in investing activities |  |  |  |  | (910,000) |  | (950,000) |  |  |
FINANCING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Proceeds from equity financing, net |  |  |  |  | 0 |  |  |  |  |
Proceeds from issuance of short term notes payable |  |  |  |  |  |  | 648,000 |  |  |
Proceeds from stock option exercise |  |  |  |  | 0 |  |  |  |  |
Proceeds from note payable |  |  |  |  | 366,000 |  | 4,052,000 |  |  |
Payment on related party note |  |  |  |  | (53,000) |  | (107,000) |  |  |
Payments on notes payable |  |  |  |  | (128,000) |  |  |  |  |
Payments on short term notes payable |  |  |  |  | (288,000) |  | (1,089,000) |  |  |
Net cash provided by financing activities |  |  |  |  | (103,000) |  | 3,504,000 |  |  |
Effect of changes in exchange rate on cash and cash equivalents |  |  |  |  | 0 |  |  |  |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS |  |  |  |  | 476,000 |  | 163,000 |  |  |
CASH AND CASH EQUIVALENTS, beginning of period | 1,181,000 |  |  |  | 705,000 | $ 379,000 | 705,000 | $ 379,000 | 705,000 | 379,000
CASH AND CASH EQUIVALENTS, end of period | 868,000 | 1,181,000 |  |  | 1,181,000 |  | 868,000 |  |  | 705,000
Supplemental cash flow disclosures: |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  | 120,000 |  | 235,000 |  |  |
Income taxes paid, net |  |  |  |  | 54,000 |  | 54,000 |  |  |
Right to use asset - operating leases capitalized |  |  |  |  | 1,451,000 |  | 1,902,000 |  |  |
Effect of Restatement |  |  |  |  |  |  |  |  |  |
OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  | (12,129,000) |  | (12,197,000) |  |  |
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  | 0 |  |  |  |  |
Amortization of debt issuance costs |  |  |  |  | 0 |  |  |  |  |
Stock based compensation expense |  |  |  |  | 0 |  |  |  |  |
Accretion of note receivable discount |  |  |  |  | (38,000) |  | (131,000) |  |  |
Gain on legal settlement |  |  |  |  | 0 |  |  |  |  |
Gain on Payroll Protection Program loan forgiveness | 0 | 0 |  |  | 0 |  | 0 |  |  |
Gain on settlement of vendor advance payments | 0 | 0 |  |  | 0 |  | 0 |  |  |
Gain on reversal of contingency loss |  |  |  |  | 0 |  |  |  |  |
Gains and losses on sale of GeoTraq |  |  |  |  | 1,850,000 |  | 1,850,000 |  |  |
Unrealized loss on marketable securities | 0 | 0 |  |  | 0 |  | 0 |  |  |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  | 0 |  |  |  |  |
Income taxes receivable |  |  |  |  | 0 |  |  |  |  |
Prepaid expenses and other current assets |  |  |  |  | 0 |  |  |  |  |
Inventories |  |  |  |  | 0 |  |  |  |  |
Right of use assets |  |  |  |  | 0 |  |  |  |  |
Lease liability |  |  |  |  | 0 |  |  |  |  |
Accounts payable and accrued expenses |  |  |  |  | 0 |  |  |  |  |
Deposits and other Assets |  |  |  |  | 0 |  |  |  |  |
Net cash used in operating activities |  |  |  |  | (10,317,000) |  | (10,478,000) |  |  |
INVESTING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Purchases of property and equipment |  |  |  |  | 0 |  |  |  |  |
Purchase of intangible assets |  |  |  |  | 0 |  |  |  |  |
Net cash used in investing activities |  |  |  |  | 0 |  |  |  |  |
FINANCING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Proceeds from equity financing, net |  |  |  |  | 0 |  |  |  |  |
Proceeds from stock option exercise |  |  |  |  | 0 |  |  |  |  |
Proceeds from note payable |  |  |  |  | 0 |  |  |  |  |
Payment on related party note |  |  |  |  | 0 |  |  |  |  |
Payments on notes payable |  |  |  |  | 0 |  |  |  |  |
Payments on short term notes payable |  |  |  |  | 0 |  |  |  |  |
Net cash provided by financing activities |  |  |  |  | 0 |  |  |  |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS |  |  |  |  | 10,317,000 |  | (10,478,000) |  |  |
CASH AND CASH EQUIVALENTS, beginning of period | (10,317,000) |  |  |  |  |  |  |  |  |
CASH AND CASH EQUIVALENTS, end of period | (10,478,000) | (10,317,000) |  |  | (10,317,000) |  | (10,478,000) |  |  |
Supplemental cash flow disclosures: |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  | 0 |  |  |  |  |
Income taxes paid, net |  |  |  |  | 0 |  |  |  |  |
Right to use asset - operating leases capitalized |  |  |  |  | 0 |  |  |  |  |
As Restated |  |  |  |  |  |  |  |  |  |
OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  | 231,000 |  | (2,373,000) |  |  |
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  | 270,000 |  | 347,000 |  |  |
Amortization of debt issuance costs |  |  |  |  | 7,000 |  | 10,000 |  |  |
Stock based compensation expense |  |  |  |  | 4,000 |  | 4,000 |  |  |
Accretion of note receivable discount |  |  |  |  | (65,000) |  | (226,000) |  |  |
Gain on legal settlement |  |  |  |  | (115,000) |  | (115,000) |  |  |
Gain on Payroll Protection Program loan forgiveness | 0 | 0 |  |  | 0 |  | 0 |  |  |
Gain on settlement of vendor advance payments | 0 | 0 |  |  | 0 |  | 0 |  |  |
Gain on reversal of contingency loss |  |  |  |  | (637,000) |  | (637,000) |  |  |
Gains and losses on sale of GeoTraq |  |  |  |  | (10,241,000) |  | (10,241,000) |  |  |
Unrealized loss on marketable securities | 270,000 | 376,000 |  |  | 376,000 |  | 646,000 |  |  |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  | (53,000) |  | (2,614,000) |  |  |
Income taxes receivable |  |  |  |  | (12,000) |  |  |  |  |
Prepaid expenses and other current assets |  |  |  |  | 554,000 |  | 176,000 |  |  |
Inventories |  |  |  |  | 610,000 |  | 689,000 |  |  |
Right of use assets |  |  |  |  | (597,000) |  | 54,000 |  |  |
Lease liability |  |  |  |  | 595,000 |  |  |  |  |
Accounts payable and accrued expenses |  |  |  |  | 713,000 |  | 1,440,000 |  |  |
Deposits and other Assets |  |  |  |  | (6,000) |  | (29,000) |  |  |
Net cash used in operating activities |  |  |  |  | (8,828,000) |  | (12,869,000) |  |  |
INVESTING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Purchases of property and equipment |  |  |  |  | (721,000) |  | (736,000) |  |  |
Purchase of intangible assets |  |  |  |  | (189,000) |  | (214,000) |  |  |
Net cash used in investing activities |  |  |  |  | (910,000) |  | (950,000) |  |  |
FINANCING ACTIVITIES: |  |  |  |  |  |  |  |  |  |
Proceeds from equity financing, net |  |  |  |  | 0 |  |  |  |  |
Proceeds from issuance of short term notes payable |  |  |  |  |  |  | 648,000 |  |  |
Proceeds from stock option exercise |  |  |  |  | 0 |  |  |  |  |
Proceeds from note payable |  |  |  |  | 366,000 |  | 4,052,000 |  |  |
Payment on related party note |  |  |  |  | (53,000) |  | (107,000) |  |  |
Payments on notes payable |  |  |  |  | (128,000) |  |  |  |  |
Payments on short term notes payable |  |  |  |  | (288,000) |  | (1,089,000) |  |  |
Net cash provided by financing activities |  |  |  |  | (103,000) |  | 3,504,000 |  |  |
Effect of changes in exchange rate on cash and cash equivalents |  |  |  |  | 0 |  |  |  |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS |  |  |  |  | (9,841,000) |  | (10,315,000) |  |  |
CASH AND CASH EQUIVALENTS, beginning of period | 9,136,000 |  |  |  | 705,000 |  | 705,000 |  | $ 705,000 |
CASH AND CASH EQUIVALENTS, end of period | $ 9,610,000 | $ 9,136,000 |  |  | 9,136,000 |  | 9,610,000 |  |  | $ 705,000
Supplemental cash flow disclosures: |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  | 120,000 |  | 235,000 |  |  |
Income taxes paid, net |  |  |  |  | 54,000 |  | 54,000 |  |  |
Right to use asset - operating leases capitalized |  |  |  |  | $ 1,451,000 |  | $ 1,902,000 |  |  |

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