Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 8,724	$ 14,026
Accounts receivable, net of allowance for doubtful accounts of $3 and $3 (2023 and 2022, respectively)	11,186	10,501
Prepaid expenses and other current assets	3,323	1,983
Total current assets	23,233	26,510
Equipment and improvements, net	1,272	1,498
Right-of-use assets	3,378	3,722
Other assets	487	490
Intangible assets, net	34,847	36,320
Goodwill	35,041	35,041
Total assets	98,258	103,581
Current liabilities:
Accounts payable	3,119	3,236
Accrued payroll and benefits	3,961	3,883
Current operating lease liabilities	1,452	1,441
Other current liabilities	1,561	1,589
Current portion of convertible notes payable	9,624	9,007
Derivative liabilities	532	1,575
Total current liabilities	20,249	20,731
Non-current liabilities:
Warrant liabilities	1,353	3,317
Operating lease liabilities	2,594	2,976
Deferred tax liabilities, net	178	178
Total non-current liabilities	4,125	6,471
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 60,595,949 and 56,197,910 shares issued and outstanding (2023 and 2022, respectively)	61	56
Additional paid-in capital	362,262	357,875
Accumulated comprehensive deficit	(288,439)	(281,552)
Total stockholders’ equity	73,884	76,379
Total liabilities and stockholders' equity	$ 98,258	$ 103,581