Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 6,417	$ 14,026
Accounts receivable, net of allowance for doubtful accounts of $3 and $3 (2023 and 2022, respectively)	11,871	10,501
Prepaid expenses and other current assets	3,351	1,983
Total current assets	21,639	26,510
Equipment and improvements, net	1,117	1,498
Right-of-use assets	3,033	3,722
Other assets	485	490
Intangible assets, net	33,355	36,320
Goodwill	35,041	35,041
Total assets	94,670	103,581
Current liabilities:
Accounts payable	3,343	3,236
Accrued payroll and benefits	2,708	3,883
Current operating lease liabilities	1,454	1,441
Other current liabilities	1,829	1,589
Current portion of convertible notes payable	7,062	9,007
Derivative liabilities	217	1,575
Total current liabilities	16,613	20,731
Non-current liabilities:
Warrant liabilities	1,194	3,317
Operating lease liabilities	2,196	2,976
Deferred tax liabilities, net	178	178
Total non-current liabilities	3,568	6,471
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 65,202,050 and 56,197,910 shares issued and outstanding (2023 and 2022, respectively)	65	56
Additional paid-in capital	368,527	357,875
Accumulated comprehensive deficit	(294,103)	(281,552)
Total stockholders’ equity	74,489	76,379
Total liabilities and stockholders' equity	$ 94,670	$ 103,581