| Dec'19 | Dec'18 | Dec'17 | Dec'16 | |||
|---|---|---|---|---|---|---|
Operating expenses: | ||||||
Research and development | ||||||
6,269 | 6,325 | 4,980 | 3,064 | |||
General and administrative | ||||||
1,535 | 1,606 | 972 | 263 | |||
Total operating expenses | ||||||
7,805 | 7,932 | 5,952 | 3,328 | |||
Loss from operations | ||||||
-7,805 | -7,932 | -5,952 | -3,328 | |||
Other income (expense) | ||||||
Interest expense | ||||||
0 | 0 | 451 | 0 | |||
Interest income | ||||||
446 | 448 | 152 | 18 | |||
Gain on sale of fixed assets | ||||||
0 | 3 | 0 | - | |||
Other income (expense), net | ||||||
445 | 451 | -298 | 18 | |||
Net loss before income taxes | ||||||
-7,359 | -7,480 | -6,251 | -3,310 | |||
Income tax benefits | ||||||
0 | 0 | 0 | 0 | |||
Net loss | ||||||
-7,359 | -7,480 | -6,251 | -3,310 | |||
Net loss per share, basic and diluted | ||||||
-0.72 | -0.74 | -0.84 | -0.52 | |||
Weighted average common shares outstanding, basic and diluted | ||||||
10,226 | 10,124 | 7,460 | 6,313 | |||