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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 172,000 $ 220,000
Accounts receivable, net 4,631,000 5,403,000
Inventories 8,668,000 8,493,000
Prepaid expenses 349,000 412,000
Total current assets 13,820,000 14,528,000
Property, plant and equipment:    
Machinery and equipment 22,246,000 22,246,000
Office furniture and equipment 2,084,000 2,084,000
Intellectual property 783,000 783,000
Leasehold improvements 39,000 39,000
Fixtures and equipment 518,000 518,000
Projects under construction 216,000 196,000
Property, plant and equipment gross 25,886,000 25,866,000
Less: accumulated depreciation and amortization (21,121,000) (20,958,000)
Total property, plant and equipment, net 4,765,000 4,908,000
Other assets:    
Operating lease right-of-use   3,816,000 3,950,000
Prepaid expenses, noncurrent 2,192,000 2,192,000
Total other assets 6,008,000 6,142,000
TOTAL ASSETS 24,593,000 25,578,000
Current liabilities:    
Trade payables 1,871,000 1,537,000
Line of credit 5,601,000 6,578,000
Operating lease liabilities – current portion 538,000 480,000
Advance investor deposit 1,050,000 1,050,000
Accrued liabilities 848,000 810,000
Total current liabilities 10,837,000 11,405,000
Long-term liabilities:    
Operating lease liabilities – noncurrent 3,278,000 3,470,000
Total long-term liabilities 3,278,000 3,470,000
TOTAL LIABILITIES 14,115,000 14,875,000
SHAREHOLDERS’ EQUITY    
Common stock - no par value, 2,000,000,000     shares authorized, 26,267,884 and 25,991,845 shares issued and 26,223,626 and 25,947,587 shares outstanding at March 31, 2025 and December 31, 2024, respectively    27,715,000 27,533,000
Additional paid-in-capital 7,824,000 7,858,000
Accumulated deficit   (26,272,000) (25,856,000)
Less: Treasury stock, 44,258 shares, at cost (161,000) (161,000)
TOTAL SHAREHOLDERS’ EQUITY 10,478,000 10,703,000
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY 24,593,000 25,578,000
Series E Preferred Stock [Member]    
SHAREHOLDERS’ EQUITY    
Preferred stock, value  892,000 864,000
Series F Preferred Stock [Member]    
SHAREHOLDERS’ EQUITY    
Preferred stock, value  480,000 465,000
Nonrelated Party [Member]    
Current liabilities:    
Notes payable 585,000 606,000
Related Party [Member]    
Current liabilities:    
Notes payable $ 344,000 $ 344,000