CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 12,896	$ 12,957
Accounts receivable, net of allowance for doubtful accounts of $5 and $38 as of March 31, 2021 and December 31, 2020, respectively	3,582	3,201
Prepaid expenses and other current assets	973	581
Total current assets	17,451	16,739
Property and equipment, net	530	558
Intangible assets, net	27,565	27,170
Goodwill	5,227	5,227
Right-of-use assets	2,040	2,161
Other noncurrent assets	137	139
Total assets	52,950	51,994
Current liabilities:
Accounts payable	1,974	2,075
Accrued expenses and other current liabilities	880	1,458
Current portion of operating lease liabilities	567	552
Current portion of long-term loan	806	449
Deferred revenue	453	504
Total current liabilities	4,680	5,038
Noncurrent operating lease liabilities	1,760	1,908
Long-term loan	1,346	1,703
Total liabilities	7,786	8,649
Shareholders' equity:
Preferred stock—$0.001 par value, 10,000,000 shares authorized, and 0 shares issued and outstanding, as of March 31, 2021 and December 31, 2020
Common stock—$0.001 par value, 200,000,000 shares authorized, 12,208,077 and 12,167,327 shares issued and outstanding, as of March 31, 2021 and December 31, 2020	13	13
Additional paid-in capital	68,402	66,005
Accumulated deficit	(23,251)	(22,673)
Total shareholders' equity	45,164	43,345
Total liabilities and shareholders' equity	$ 52,950	$ 51,994