Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 23,216	$ 59,107
Short-term investments	17,650	11,916
Accounts receivable	3,735	2,838
Prepaid expenses and other current assets	4,748	2,874
Total current assets	49,349	76,735
Operating lease right-of-use assets	796	1,191
Property and equipment, net	315	391
Other assets	70	104
Total assets	50,530	78,421
Current liabilities:
Accounts payable	4,707	3,977
Accrued expenses	6,697	7,239
Current portion of deferred revenue	15,729	14,700
Current portion of notes payable		5,714
Current portion of operating lease liabilities	440	408
Total current liabilities	27,573	32,038
Long-term notes payable		3,239
Long-term deferred revenue		10,378
Long-term operating lease liabilities	384	824
Total liabilities	27,957	46,479
Commitments and contingencies
Stockholders' equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized as of December 31, 2023 and 2022; 35,254,752 and 34,414,149 shares issued and outstanding as of December 31, 2023 and 2022, respectively	3	3
Additional paid-in capital	208,170	204,268
Accumulated other comprehensive income	140	76
Accumulated deficit	(185,740)	(172,405)
Total stockholders' equity	22,573	31,942
Total liabilities and stockholders' equity	$ 50,530	$ 78,421