Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 7,125	$ 14,026
Accounts receivable, net of related allowances of $3 and $3 at December 31, 2023 and 2022, respectively	7,912	10,501
Prepaid expenses and other current assets	1,843	1,983
Total current assets	16,880	26,510
Equipment and improvements, net	883	1,498
Right-of-use assets	2,759	3,722
Other assets	482	490
Intangible assets, net	29,532	36,320
Goodwill	35,041	35,041
Total assets	85,577	103,581
Current liabilities:
Accounts payable	2,522	3,236
Accrued payroll and benefits	2,500	3,883
Current operating lease liabilities	1,483	1,441
Other current liabilities	1,137	1,589
Current portion of convertible notes payable	0	9,007
Derivative liabilities	0	1,575
Total current liabilities	7,642	20,731
Non-current liabilities:
Warrant liabilities	597	3,317
Operating lease liabilities	1,780	2,976
Deferred tax liabilities, net	168	178
Total non-current liabilities	2,545	6,471
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 74,783,834 and 56,197,910 shares issued and outstanding at December 31, 2023 and 2022, respectively	75	56
Additional paid-in capital	381,263	357,875
Accumulated comprehensive deficit	(305,948)	(281,552)
Total stockholders’ equity	75,390	76,379
Total liabilities and stockholders' equity	$ 85,577	$ 103,581