| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 |
|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities | ||||||||
Net loss | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Net loss | ||||||||
- | - | - | - | - | - | - | 0 | 0 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Stock-based compensation | ||||||||
3,551 | 3,333 | 3,185 | 2,963 | 2,896 | 2,251 | 0 | 0 | 0 |
Accretion of discounts on marketable securities | ||||||||
797 | 1,063 | 0 | 0 | 0 | - | - | - | - |
Depreciation expense | ||||||||
67 | 64 | 0 | 0 | 0 | - | - | - | - |
Non cash interest expense | ||||||||
0 | - | - | - | - | - | - | - | - |
Reduction in operating lease right-of-use asset | ||||||||
230 | 193 | 0 | 0 | 0 | - | - | - | - |
Changes in operating assets and liabilities: | ||||||||
Prepaid expenses and other assets | ||||||||
874 | 1,621 | 1,246 | -470 | -31 | 923 | 0 | 0 | 0 |
Other receivable - related party | ||||||||
- | - | - | - | 0 | - | - | - | - |
Accounts payable | ||||||||
-34 | 263 | -56 | 229 | 527 | 769 | 0 | 0 | 0 |
Accrued expenses and other current liabilities | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Accrued expenses | ||||||||
- | - | - | - | - | 1,068 | 0 | 0 | 0 |
Accounts payable and accrued expenses - related party | ||||||||
- | - | - | - | 0 | - | - | - | - |
Accounts payable and accrued expenses - related party | ||||||||
- | - | - | - | - | - | - | 0 | 0 |
Operating lease liability | ||||||||
-123 | -119 | 0 | 0 | 0 | - | - | - | - |
Net cash used in operating activities | ||||||||
-28,397 | -27,408 | -26,098 | -24,007 | -22,637 | -17,874 | 0 | 0 | 0 |
Cash flows from investing activities | ||||||||
Sales and maturities of marketable securities | ||||||||
99,705 | 117,715 | 0 | 0 | 0 | - | - | - | - |
Purchases of marketable securities | ||||||||
73,941 | 89,854 | 0 | 0 | 0 | - | - | - | - |
Purchases of property and equipment | ||||||||
0 | - | - | - | - | 774 | 0 | 0 | 0 |
Net cash provided by investing activities | ||||||||
23,159 | 25,955 | -1,841 | -58,450 | -58,807 | -79,894 | 0 | 0 | 0 |
Cash flows from financing activities | ||||||||
Proceeds from exercise of stock options | ||||||||
427 | 423 | 0 | 0 | 0 | - | - | - | - |
Proceeds from issuance of debt, net | ||||||||
0 | - | - | - | - | - | - | - | - |
Repayment of subscription receivable | ||||||||
0 | - | - | - | - | - | - | - | - |
Net cash provided by financing activities | ||||||||
35,297 | 423 | 228 | -840 | 78,386 | 99,376 | 0 | 0 | 0 |
Net increase in cash and cash equivalents | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Net increase in cash and cash equivalents | ||||||||
- | - | - | - | - | - | - | 0 | 0 |
Supplemental disclosure of noncash investing and financing activities: | ||||||||
Property and equipment purchases payable or accrued at period end | ||||||||
0 | - | 0 | 0 | 0 | - | - | 0 | 0 |
Debt discount costs included in accrued expense at period end | ||||||||
0 | - | - | - | - | - | - | - | - |
Deferred offering costs included in accounts payable and accrued expenses | ||||||||
- | - | - | - | - | - | - | - | 0 |
Series C Convertible Preferred Stock [Member] | ||||||||
Payment of stock issuance costs | ||||||||
- | - | - | - | - | - | - | 0 | 0 |
Proceeds received from subscription receivable / issuance of preferred stock | ||||||||
- | - | - | - | - | 21,000 | 0 | 0 | 0 |