v3.21.2
Condensed Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES    
Net Loss $ (7,346) $ (7,424)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 26 21
Right of use asset amortization 88 72
Stock-based compensation 1,578 1,395
Warrant modification expense 0 139
Changes in operating assets and liabilities:    
Prepaid expenses and other current assets (527) (123)
Long-term prepaid rent 0 (450)
Accounts payable (31) 271
Accrued expenses (27) 33
Accrued payroll expenses (383) (414)
Lease liability (12) (74)
Deferred revenue 0 (37)
Net cash used in operating activities (6,634) (6,591)
CASH FLOWS FROM INVESTING ACTIVITIES    
Acquisition of property and equipment (79) (11)
Net cash used in investing activities (79) (11)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from underwritten public offering, net of commission and expenses 0 9,395
Proceeds from at-the-market sale of stock, net of commissions and expenses 243 0
Proceeds from exercise of warrants 0 164
Proceeds from exercise of stock options 2,869 137
Net cash provided by financing activities 3,112 9,696
Net increase (decrease) in cash and cash equivalents (3,601) 3,094
Cash and cash equivalents at beginning of period 37,942 14,871
Cash and cash equivalents at end of period 34,341 17,968
Supplemental information:    
Cash paid for interest 0 0
Cash paid for taxes 66 0
Non-cash investing and financing activities    
Exercise of warrants-cashless $ 0 $ 0