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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 30,360 $ 15,369
Short-term investments 48,994 61,496
Accounts receivable, net 3,313 15,000
Prepaid and other current assets 6,843 4,201
Total current assets 89,510 96,066
Long-term investments 2,543  
Other assets, noncurrent 528 257
Right-of-use assets 1,832 1,927
Property and equipment, net 433 304
Total assets 94,846 98,554
Current liabilities:    
Accounts payable 5,931 4,279
Accrued compensation 2,476 2,106
Deferred revenue 1,983 15,000
Other accrued liabilities 6,743 7,031
Operating lease liability 663 483
Total current liabilities 17,796 28,899
Operating lease liability, noncurrent 981 1,319
Total liabilities 18,777 30,218
Commitments and Contingencies (Note 7)
Stockholders’ equity:    
Preferred stock, $0.001 par value, 5,000,000 shares authorized; zero shares issued and outstanding
Common stock, $0.001 par value, 100,000,000 shares authorized; 22,097,820 and 12,040,835 shares issued and outstanding at December 31, 2020 and 2019, respectively 22 12
Additional paid-in capital 390,803 326,810
Accumulated other comprehensive income 5 34
Accumulated deficit (314,761) (258,520)
Total stockholders’ equity 76,069 68,336
Total liabilities and stockholders’ equity $ 94,846 $ 98,554