Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES    
Net Loss $ (13,300) $ (12,897)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 44 33
ROU asset amortization 134 0
Stock-based compensation 2,929 2,425
Loss on disposal of assets 0 1
Changes in operating assets and liabilities:    
Accounts receivable 185 (75)
Prepaid expenses and other current assets 25 78
Accounts payable (33) 150
Accrued expenses (75) (15)
Accrued payroll expenses (165) 472
Lease liability (134) 0
Deferred revenue (18) 55
Net cash used in operating activities (10,408) (9,773)
CASH FLOWS FROM INVESTING ACTIVITIES    
Acquisition of property and equipment (51) (23)
Net cash used in investing activities (51) (23)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from registered direct offering of common stock, net 6,397 0
Proceeds from public offering, net 0 11,360
Net cash provided by financing activities 6,397 11,360
Net increase/(decrease) in cash and cash equivalents (4,062) 1,564
Cash and cash equivalents at beginning of year 18,933 17,369
Cash and cash equivalents at end of year 14,871 18,933
Supplemental Information:    
Cash paid for interest 0 0
Cash paid for taxes $ 0 $ 0