v3.22.4
Statements of Cash Flows - USD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Cash Flows from Operating Activities        
Net loss $ (11,978,000) $ (7,020,000) $ (10,053,000) $ (3,284,000)
Adjustments to reconcile net loss to net cash used in operating activities:        
Depreciation of property and equipment 377,000 234,000 299,000 265,000
Depreciation of rental equipment 5,000
Amortization of intangible assets     42,000
Amortization of debt discount 2,262,000 15,000 713,000
Financing costs 1,554,000
Change in inventory reserve 60,000 60,000
Fair value of common stock issued for services 2,045,000 1,683,000 1,744,000 115,000
Fair value of vested options and warrants 1,309,000 1,085,000 1,768,000
Fair value of vested restricted stock units 225,000
Gain on forgiveness of SBA PPP loan (38,000) (38,000)
Changes in operating assets and liabilities        
Accounts receivable 5,000 (17,000) (17,000) (1,000)
Inventory (405,000) (60,000) (60,000)
Prepaids and other current assets 26,000 (87,000)
Accounts payable and accrued expenses 956,000 252,000 368,000 359,000
Deferred revenue 4,000
Net cash used in operating activities (3,615,000) (3,806,000) (5,303,000) (2,504,000)
Cash Flows from Investing Activities        
Purchase of property and equipment (50,000) (20,000) (20,000) (390,000)
Purchase of rental equipment (228,000)
Deposits on purchase of equipment (625,000) (1,351,000)
Net cash used in investing activities (278,000) (645,000) (1,371,000) (390,000)
Cash Flows from Financing Activities        
Proceeds from sale of common stock 1,620,000 5,245,000 5,245,000 2,513,000
Proceeds from exercise of warrants 1,558,000
Proceeds from convertible notes payable 700,000 3,034,000
Proceeds from note payable     38,000
Deferred offering costs (51,000) (186,000)
Repayment of convertible notes (100,000)
Repayment of loans payable (9,000) (5,000) (7,000)
Repayment of patent purchase obligation (100,000) (100,000)
Repayment of related parties     68,000
Net cash provided by financing activities 3,018,000 5,840,000 7,986,000 2,619,000
Net increase (decrease) in cash (875,000) 1,389,000 1,312,000 (275,000)
Cash beginning of period 1,715,000 403,000 403,000 678,000
Cash end of period 840,000 1,792,000 1,715,000 403,000
Supplemental disclosures of cash flow information:        
Cash paid for interest 5,000 3,000 3,000
Cash paid for income taxes
Non-Cash Investing and Financing Activities:        
Fair value of warrants recorded as a debt discount 576,000 2,482,000
Transfer of deposits on purchase of equipment to property and equipment     1,074,000
Reclassification of vendor deposits to property and equipment 247,000
Reclassification of vendor deposits to inventory 30,000
Issuance of loan payable for vehicle purchase $ 49,000 $ 40,000