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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Cash flows from operating activities:    
Net loss $ (1,467,000) $ (7,554,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activites    
Depreciation and amortization 383,000 462,000
Equity compensation charge 162,000
Amortization of ROU asset 501,000
Realized currency translation gain (92,000)
Gain on sale of building (3,357,000)
Provision for losses on accounts receivable 40,000
Impairment of Note Receivable 95,000
Deconsolidation of disposed entities 10,015,000
Change in assets and liabilities:    
Accounts receivable 1,825,000 (1,673,000)
Inventories (449,000) (604,000)
Prepaid expenses and other assets 836,000 132,000
Change in ROU liability (501,000)
Trade payables (819,000) (1,173,000)
Accrued liabilities 1,897,000 (1,000)
Net cash provided by (used in) operating activities 2,368,000 (3,710,000)
Cash flows from investing activities:    
Purchases of property, plant and equipment (163,000) (122,000)
Proceeds from Sale of building 3,500,000
Net cash (used in) provided by investing activities (163,000) 3,378,000
Cash flows from financing activities:    
Repayment of debt and revolving line of credit (2,125,000) (8,284,000)
Proceeds from issuance of preferred stock 3,000,000
Cash paid for deferred financing fees 85,000
Proceeds from issuance of long-term debt and revolving line of credit 5,995,000
Net cash (used in) provided by financing activities (2,125,000) 626,000
Effect of exchange rate changes on cash (550,000)
Net increase (decrease) in cash and cash equivalents 80,000 (256,000)
Cash and cash equivalents at beginning of year 66,000 322,000
Cash and cash equivalents at end of year 146,000 66,000
Supplemental disclosure of cash flow information:    
Cash payments for interest 375,000 491,000
Accrued dividend and accretion on Preferred Stock 584,000 536,000
Lease right-of-use assets and lease liability 747,000
Conversion of Series A, C and D Preferred Stock 6,745,000
Issuance of Series C and D Preferred offerings 3,000,000
Cash receipts for tax refund 202,000 206,000
Amortization of beneficial conversion feature and deemed dividend on Series C and D Preferred stock $ 2,990,000