Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 14,026	$ 16,078
Accounts receivable, net of allowance for doubtful accounts of $3 and $2 at December 31, 2022 and 2021, respectively	10,501	10,590
Prepaid expenses and other current assets	1,983	1,988
Total current assets	26,510	28,656
Equipment and improvements, net	1,498	2,698
Right-of-use assets	3,722	4,866
Other assets	490	620
Intangible assets, net	36,320	42,631
Goodwill	35,041	35,041
Total assets	103,581	114,512
Current liabilities:
Accounts payable	3,236	3,301
Accrued payroll and benefits	3,883	4,055
Current operating lease liabilities	1,441	1,400
Other current liabilities	1,589	612
Current portion of convertible notes payable	9,007	0
Derivative liabilities	1,575	0
Total current liabilities	20,731	9,368
Non-current liabilities:
Warrant liabilities	3,317	0
Operating lease liabilities	2,976	4,467
Deferred tax liabilities, net	178	117
Total non-current liabilities	6,471	4,584
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 56,197,910 and 54,259,390 shares issued and outstanding at December 31, 2022 and 2021, respectively	56	54
Additional paid-in capital	357,875	352,779
Accumulated comprehensive deficit	(281,552)	(252,273)
Total stockholders’ equity	76,379	100,560
Total liabilities and stockholders' equity	$ 103,581	$ 114,512