v3.26.1
Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Cash flows from operating activities:    
Net loss $ (1,585,000) $ (1,898,000)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation 942,000 1,063,000
Depreciation and amortization 683,000 684,000
Provision for excess and obsolete inventory 1,573,000
Provision (recovery) for bad debt (18,000) 13,000
Impairment charges 163,000
Gains on sales of equipment (717,000)
Changes in operating assets and liabilities    
Accounts receivable (147,000) (256,000)
Contract assets (1,165,000) (622,000)
Inventories 365,000 646,000
Other assets 530,000 (150,000)
Accounts payable (37,000) (524,000)
Accrued expenses (1,047,000) 472,000
Contract liabilities (2,362,000) (1,773,000)
Net cash used in operating activities (3,678,000) (1,489,000)
Cash flows from investing activities:    
Purchase of property and equipment (48,000) (106,000)
Investment in captive insurance company (51,000)
Net proceeds from sales of equipment 250,000
Net cash (used in) provided by investing activities (99,000) 144,000
Cash flows from financing activities:    
Payments of long-term debt (87,000) (82,000)
Net cash used in financing activities (87,000) (82,000)
Net decrease in cash and cash equivalents (3,864,000) (1,427,000)
Cash and cash equivalents at beginning of year 12,598,000 14,025,000
Cash and cash equivalents at end of year 8,734,000 12,598,000
Supplemental disclosure of cash flow information:    
Income taxes paid 27,000 3,000
Interest paid 13,000 19,000
Non-cash investing and financing activities:    
Property, plant and equipment transferred to assets held for sale 633,000
Inventory transferred to property, plant and equipment $ 181,000 $ 110,000