Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows (Unaudited)

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Cash flows from operating activities:    
Net loss $ (3,508) $ (3,622)
Adjustments to reconcile net loss to net cash used in operating activities:    
Share-based compensation 308 511
Amortization of discount on marketable securities 120 26
Non-cash lease expense 15 14
Depreciation 6 6
Changes in operating assets and liabilities:    
Amounts receivable (38) 3
Deposits 10 0
Prepaid expenses and other assets (709) (383)
Accounts payable (76) (410)
Accrued liabilities (16) (458)
Net cash used in operating activities (3,888) (4,313)
Cash flows from investing activities:    
Purchase of marketable securities (13,379) (11,923)
Maturities of marketable securities 15,593 11,921
Purchases of property and equipment 0 (9)
Proceeds from disposition of property and equipment 0 2
Net cash provided by (used in) investing activities 2,214 (9)
Cash flows from financing activities:    
Proceeds from the exercise of stock options 0 244
Principal payments on finance lease obligations (1) (2)
Net cash provided by (used in) financing activities (1) 242
Net decrease in cash and cash equivalents (1,675) (4,080)
Cash and cash equivalents at beginning of period 4,707 7,409
Cash and cash equivalents at end of period 3,032 3,329
Supplemental disclosure of non-cash transactions:    
Assets acquired under financing lease $ 10 $ 0