| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 | Dec'17 | Sep'17 | Jun'17 | Mar'17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||||||||
Net income (loss) | ||||||||||||
22,570 | -15,954 | -16,878 | -17,758 | -4,199 | -4,735 | -17,222 | -15,852 | 31,212 | - | - | - | - |
Net income (loss) | ||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | -8,626 |
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: | ||||||||||||
Depreciation and amortization expense | ||||||||||||
457 | 461 | 453 | 441 | 430 | 365 | 334 | 327 | 321 | 307 | 262 | 237 | 158 |
Stock-based compensation expense | ||||||||||||
1,850 | 1,545 | 1,566 | 1,485 | 1,395 | 1,222 | 1,214 | 1,490 | 1,291 | 673 | 2,804 | 729 | 503 |
Non-cash interest expense related to note payable | ||||||||||||
176 | - | - | - | - | - | - | - | - | - | - | - | - |
Net amortization of premiums and discounts on marketable securities | ||||||||||||
42 | 98 | 202 | 276 | 188 | 170 | 185 | 92 | -70 | -109 | -112 | -131 | -164 |
Realized losses on marketable securities | ||||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 | 0 | -2 |
Loss on disposal of property and equipment | ||||||||||||
-1 | - | - | - | - | -1 | 0 | 0 | -13 | 0 | 0 | 0 | -35 |
Non-cash operating lease cost | ||||||||||||
587 | 949 | 287 | 287 | 291 | - | - | - | - | - | - | - | - |
Deferred income tax benefit | ||||||||||||
- | - | - | - | - | - | - | - | - | - | -1,491 | -719 | -946 |
Changes in operating assets and liabilities: | ||||||||||||
Amounts due from related party | ||||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 | 0 | -5,000 |
Prepaid expenses and other current assets | ||||||||||||
444 | 261 | -736 | -1,449 | -1,077 | 1,228 | -3,896 | 1,111 | -613 | 68 | -1,657 | -515 | 1,016 |
Other assets | ||||||||||||
138 | -7 | 24 | -38 | 9 | -28 | 53 | 6 | -5 | - | - | - | - |
Accounts payable | ||||||||||||
-2,651 | 1,737 | -257 | -1,799 | 902 | -1,121 | 1,156 | -3,705 | 3,693 | -777 | 1,729 | -3,711 | 3,044 |
Accrued expenses and other current liabilities | ||||||||||||
-467 | -409 | 546 | 2,452 | -3,299 | 1,440 | 395 | 3,294 | -5,653 | 428 | 2,415 | 551 | -449 |
Deferred rent | ||||||||||||
- | - | - | - | - | -21 | -50 | 64 | 59 | 48 | 47 | -29 | -315 |
Operating lease liability | ||||||||||||
17 | -950 | -277 | -277 | -274 | - | - | - | - | - | - | - | - |
Other liabilities | ||||||||||||
1,100 | - | - | - | - | - | - | - | - | - | - | - | - |
Deferred revenue - related party | ||||||||||||
-38,592 | -439 | -344 | -143 | -14,434 | -9,765 | -1,731 | -2,426 | -495 | - | - | - | - |
Deferred revenue - related party | ||||||||||||
- | - | - | - | - | - | - | - | - | - | -2,479 | 23,805 | -1,672 |
Net cash used in operating activities | ||||||||||||
-15,576 | -13,338 | -14,393 | -14,101 | -18,308 | -13,942 | -12,146 | -18,145 | 31,011 | - | - | - | - |
Cash flows from investing activities: | ||||||||||||
Net cash provided by (used in) operating activities | ||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | -3,488 |
Purchases of property and equipment | ||||||||||||
23 | 131 | 270 | 261 | 876 | 1,123 | 285 | 131 | 480 | 578 | 57 | 243 | 1,095 |
Purchases of marketable investments | ||||||||||||
650 | 10,563 | 14,325 | 23,158 | 70,301 | - | - | - | - | - | - | - | - |
Proceeds from sales or maturities of marketable securities | ||||||||||||
25,500 | 25,501 | 29,749 | 33,925 | 47,675 | 56,100 | 3,234 | 7,158 | 6,200 | 7,001 | 2,299 | 4,000 | 14,591 |
Net cash provided by (used in) investing activities | ||||||||||||
24,827 | 14,807 | 15,154 | 10,506 | -23,502 | 54,978 | 2,949 | -100,231 | 5,720 | - | - | - | - |
Cash flows from financing activities: | ||||||||||||
Net cash provided by investing activities | ||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | 13,496 |
Payments of initial public offering costs | ||||||||||||
- | - | - | - | - | 0 | 0 | 1,976 | 55 | - | - | - | - |
Proceeds from issuance of common stock upon public offering, net | ||||||||||||
320 | - | - | - | - | - | - | - | - | - | - | - | - |
Proceeds from employee stock purchases | ||||||||||||
83 | - | - | - | - | - | - | - | - | - | - | - | - |
Proceeds from exercise of stock options | ||||||||||||
10 | 0 | 11 | 33 | 211 | 284 | 24 | 2 | 157 | - | - | - | - |
Net cash provided by financing activities | ||||||||||||
413 | 7,160 | 11 | 33 | 211 | 284 | 24 | 109,966 | 102 | - | - | - | - |
Net increase (decrease) in cash and cash equivalents and restricted cash | ||||||||||||
9,664 | 8,629 | 772 | -3,562 | -41,599 | 41,320 | -9,173 | -8,410 | 36,833 | - | - | - | - |
Net increase in cash and cash equivalents and restricted cash | ||||||||||||
- | - | - | - | - | - | - | - | - | - | -7,437 | 18,754 | 10,008 |
Supplemental disclosure of cash flow information: | ||||||||||||
Cash paid for interest | ||||||||||||
180 | - | - | - | - | - | - | - | - | - | - | - | - |
Cash paid for income taxes | ||||||||||||
- | - | - | - | - | -13 | 0 | 27 | 14 | - | - | 32 | 61 |
Supplemental disclosure of non-cash investing and financing activities: | ||||||||||||
Additional right-of-use asset and related lease liability | ||||||||||||
15,003 | - | - | - | - | - | - | - | - | - | - | - | - |
Accretion of redeemable convertible preferred stock to redemption value | ||||||||||||
- | - | - | - | - | 0 | 0 | 0 | 11 | 10 | 10 | 10 | 10 |
Deferred Offering costs included in accounts payable and accrued expenses | ||||||||||||
- | - | - | - | - | - | - | - | 1,450 | - | - | - | - |
Purchases of property and equipment included in accounts payable and accrued expenses | ||||||||||||
- | - | -203 | 78 | 137 | 370 | 216 | 56 | 50 | 204 | 238 | -159 | 167 |
Reclassification of deposit liability for restricted stock upon vesting of shares | ||||||||||||
- | - | - | - | - | - | - | - | - | -1 | 29 | 3 | 4 |
Landlord incentives for construction of leasehold improvements recorded as deferred rent | ||||||||||||
- | - | - | - | - | - | - | - | - | 0 | 186 | 934 | 1,257 |