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DECONSOLIDATION OF SUBSIDIARY AND DISCONTINUED OPERATIONS (Details 3) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
 Cash flows from operating activities:        
Net loss $ 2,216,000 $ (1,359,000) $ (779,000) $ (4,658,000)
Changes in operating assets and liabilities:        
Net cash used in operating activities     (6,366,000) (4,734,000)
Cash flows from investing activities:        
Net cash used in investing activities     (3,799,000) 2,184,000
Cash flows from financing activities:        
Net cash provided by financing activities     2,552,000 2,316,000
Effect of exchange rate changes on cash and cash equivalents     (442,000) (311,000)
Cash and cash equivalents and restricted cash at beginning of period     15,369,000 14,055,000
Cash and cash equivalents and restricted cash at end of period 15,449,000 12,490,000 15,449,000 12,490,000
GIGA [Member]        
 Cash flows from operating activities:        
Net loss (122,000) (1,716,000) (4,346,000) (6,374,000)
Adjustments to reconcile net loss to net cash provided by operating activities:        
Depreciation and amortization     618,000 618,000
Amortization of right-of-use assets     684,000 807,000
Amortization of intangibles     157,000 220,000
Stock-based compensation     (858,000) 1,594,000
Changes in operating assets and liabilities:        
Accounts receivable     $ (1,638,000) $ (783,000)
Inventories     1,514,000 1,091,000
Prepaid expenses and other current assets     $ (1,516,000) $ (706,000)
Lease liabilities     (667,000) (916,000)
Accounts payable and accrued expenses     (314,000) (285,000)
Net cash used in operating activities     (6,366,000) (4,734,000)
Cash flows from investing activities:        
Purchase of property and equipment     (249,000) (177,000)
Cash decrease upon deconsolidation     (3,550,000)
Net cash used in investing activities     (3,799,000) (177,000)
Cash flows from financing activities:        
Proceeds from notes payable     2,552,000 2,316,000
Cash contributions from parent     3,383,000 2,361,000
Net cash provided by financing activities     5,935,000 4,677,000
Effect of exchange rate changes on cash and cash equivalents     (71,000) 153,000
Net increase in cash and cash equivalents and restricted cash     (4,301,000) (81,000)
Cash and cash equivalents and restricted cash at beginning of period     4,301,000 2,195,000
Cash and cash equivalents and restricted cash at end of period $ 2,114,000 2,114,000
Supplemental disclosures of cash flow information:        
Cash paid during the period for interest     $ 946,000 $ 862,000