v3.22.2.2
Condensed Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 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 $ (7,842) $ (4,770) $ (8,494) $ (3,639)
Adjustments to reconcile net loss to net cash used in operating activities:        
Stock based compensation 286 41 57 78
Depreciation 7 6 8 8
Change in fair value of derivative liabilities   (81) (436) 27
Amortization of debt discount 0 1,613 1,747 411
Loss on extinguishment of debt     1,636  
Amortization of right-of-use asset 122   16  
Accounts receivable allowances 0 (9) 66 36
Reserve for inventory obsolescence   (8) (8) 8
Noncash interest     76  
Forgiveness of PPP loan   (157) (157)  
Issuance of common stock warrant   52 280  
Accounts receivable (3) (68) (66) (75)
Inventory (332) (42) (181) 227
Prepaid expenses and other current assets 462 30 (707) 23
Deferred offering costs (79) (555)    
Accounts payable 813 929 419 1
Accrued expenses (6) 167 128 (132)
Lease liabilities (135)   4  
Other assets 15      
Net cash used in operating activities (6,692) (2,852) (5,612) (3,027)
Cash flows from investing activities        
Acquisition of property and equipment (11)      
Net cash used in investing activities (11)      
Cash flows from financing activities        
Proceeds from notes payable borrowings       195
Repayment of notes payable borrowings   (19) (19) (21)
Payment of deferred offering costs   0    
Proceeds from convertible notes payable borrowings   2,613 2,513 1,573
Proceeds from convertible notes payable borrowings – related party     100  
Proceeds from exercise of stock options 56 62 62 3
Proceeds from issuance of common stock, net of issuance costs     14,887  
Proceeds from issuance of convertible preferred stock, net of issuance costs       10
Net cash provided by financing activities 56 2,656 17,543 1,760
Net increase (decrease) in cash and cash equivalents (6,647) (196) 11,931 (1,267)
Cash and cash equivalents        
Beginning of period 12,975 1,044 1,044 2,311
End of period $ 6,328 848 12,975 1,044
Supplemental disclosures of cash flow information        
Cash paid for income tax     1 1
Cash paid for interest       1
Noncash financing Transactions        
Issuance of conversion feature derivative liability   1,355 1,355 $ 699
Original issue discount on convertible notes payable   $ 244    
Conversion of convertible notes payable and accrued interest to common stock     4,384  
Conversion of convertible preferred stock to common stock     1  
Reclassify conversion feature derivative liability to additional paid in capital     1,636  
Issuance of common stock warrant     328  
Recognition of right-of-use asset and operating lease liability     $ 704