XML 21 R7.htm IDEA: XBRL DOCUMENT v3.23.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Cash flows from operating activities:    
Net loss $ (5,758) $ (7,892)
Adjustments to reconcile net loss to net cash used in operating activities:    
Common stock issued for services 26 33
Share-based compensation 373 680
Depreciation and amortization 161 260
Impairment of intangible assets 19 484
Gain from sale of fixed assets (38)  
Right of use asset amortization 131 188
Realized gain from market securities (45)  
Gain on forgiveness of Payroll Protection Program Loan and interest   (251)
Change in operating assets and liabilities:    
Contract assets 19 53
Accounts receivable (46) (33)
Prepaid expenses and other assets (232) 121
Accounts payable and accrued liabilities (125) (393)
Accrued compensation and related taxes 360 53
Contract liabilities 163 (10)
Net cash used in operating activities (4,992) (6,707)
Cash flows from investing activities:    
Acquisition of fixed assets (10) (73)
Disbursements for patents and other intangible assets (154) (140)
Proceeds from sale of fixed assets 39  
Purchases of held-to-maturity short-term US treasuries (5,898)  
Redemption of held-to-maturity US treasuries 3,337  
Net cash used in investing activities (2,686) (213)
Cash flows from financing activities:    
Proceeds from issuance of common stock, net of offering costs 6,539 5,309
Proceeds from exercise of stock options and warrants   385
Net cash provided by financing activities 6,539 5,694
Effect of exchange rate changes on cash and cash equivalents (17) 9
Net change in cash and cash equivalents (1,156) (1,217)
Cash and cash equivalents, beginning of period 7,607 8,824
Cash and cash equivalents, end of period 6,451 7,607
Supplemental disclosure of cash flow information:    
Officer and employee equity awards for prior year accrued compensation $ 107 $ 217