Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 6,212	$ 20,897
Other receivables	150	413
Contract costs	1,545	1,537
Prepaid expenses	2,287	2,990
Total current assets	10,194	25,837
Property and equipment, net	779	1,006
Intangible assets, net	28	32
Equity method investment	0	9
Contract costs	518	526
Other assets	587	557
Total assets	12,106	27,967
Current liabilities:
Accounts payable	1,219	1,755
Accrued liabilities	1,865	2,974
Deferred revenue, current	14,680	14,602
Note payable, current	356	0
Total current liabilities	18,120	19,331
Deferred revenue	4,922	5,000
Note payable	359	0
Other liabilities	3	0
Total liabilities	23,404	24,331
Commitments and contingencies (Note 12)
Stockholders' equity (deficit):
Preferred stock (par value $0.0001; 60,000,000 shares authorized; zero shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively)
Common stock (par value $0.0001; 100,000,000 shares authorized; shares issued and outstanding: 8,923,374 and 8,918,461 as of September 30, 2020 and December 31, 2019, respectively)	1	1
Additional paid-in capital	105,980	104,404
Accumulated deficit	(117,279)	(100,769)
Total stockholders' equity (deficit)	(11,298)	3,636
Total liabilities and stockholders' equity (deficit)	$ 12,106	$ 27,967