| 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 | ||||||||
-2,214 | -1,738 | -1,698 | -2,695 | -2,175 | -512 | -1,539 | -1,596 | -2,043 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Stock-based compensation expense | ||||||||
426 | 136 | 144 | 580 | 309 | 53 | 70 | 73 | 269 |
Amortization of held-to-maturity securities, net | ||||||||
107 | 56 | 50 | 58 | 32 | 78 | 106 | 207 | 284 |
Foreign currency exchange loss (gain), net | ||||||||
-10 | -3 | -13 | -5 | -5 | -18 | -12 | 15 | -4 |
Changes in operating assets and liabilities: | ||||||||
Interest receivable | ||||||||
-102 | 94 | -163 | 108 | -3 | -18 | -146 | -9 | -21 |
Accounts receivable | ||||||||
-35 | 141 | -78 | 82 | 106 | 126 | 198 | -93 | -171 |
Income tax receivable | ||||||||
0 | -9 | 9 | -500 | -6 | 1,007 | 0 | 0 | 0 |
Prepaid research and development | ||||||||
0 | 0 | -98 | -71 | -83 | -207 | -257 | -88 | -360 |
Prepaid expenses and other current assets | ||||||||
10 | -58 | 224 | -54 | -5 | -22 | 24 | 70 | -55 |
Accounts payable | ||||||||
-292 | 227 | -235 | 23 | 641 | -231 | 311 | -218 | -57 |
Accrued expenses | ||||||||
-326 | 95 | 74 | 93 | -96 | 159 | 48 | -163 | 207 |
Deferred research and development obligation | ||||||||
163 | -14 | 2 | 67 | -117 | 89 | 9 | -124 | 166 |
Income taxes payable | ||||||||
- | - | - | - | - | 1 | 0 | 0 | -102 |
Net cash used in operating activities | ||||||||
-1,996 | -1,400 | -1,540 | -1,431 | -1,409 | -1,228 | -801 | -1,716 | -660 |
Cash flows from investing activities | ||||||||
Purchases of held-to-maturity investment securities | ||||||||
11,652 | 10,030 | 14,014 | 10,380 | 13,190 | 10,414 | 8,999 | 12,558 | 17,761 |
Proceeds from maturities of investment securities | ||||||||
13,350 | 11,370 | 15,277 | 12,479 | 16,197 | 12,324 | 10,232 | 12,868 | 17,639 |
Net cash provided by investing activities | ||||||||
1,697 | 1,339 | 1,262 | 2,098 | 3,006 | 1,909 | 1,232 | 309 | -122 |
Cash flows from financing activities | ||||||||
Repurchases of common stock | ||||||||
- | - | - | - | - | 0 | 1,929 | 0 | 374 |
Proceeds from exercise of options | ||||||||
175 | 221 | 179 | 149 | 0 | - | - | - | - |
Net cash provided by financing activities | ||||||||
175 | 221 | 179 | 149 | 0 | 0 | -1,924 | 0 | -374 |
Effect of exchange rate changes on cash | ||||||||
-2 | 0 | -20 | -10 | -7 | -9 | -10 | -5 | 3 |
Net (decrease) increase in cash and cash equivalents | ||||||||
-126 | 161 | -119 | 805 | 1,589 | 671 | -1,504 | -1,412 | -1,155 |
Supplemental cash flow information | ||||||||
Cash received from income tax refund | ||||||||
0 | 0 | -6 | 500 | 6 | 0 | -102 | 0 | 102 |