Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 27,248	$ 58,824
Restricted cash - current	4,477	6,716
Receivables, net	5,775	5,938
Unbilled receivables	4,168	3,235
Deferred costs - current	398	600
Prepaid expenses and other current assets	4,565	5,019
Total current assets	46,631	80,332
Long-term assets:
Property and equipment, net	3,546	3,785
Restricted cash - long-term	406	406
Goodwill	5,713	5,713
Intangible assets, net	2,041	2,346
Other assets	485	444
Operating lease right-of-use assets	861	656
Total assets	59,683	93,682
Current liabilities:
Accounts payable	1,933	1,001
Accrued compensation and benefits	2,521	2,343
Deferred revenue	488	441
Current portion of operating lease liabilities	617	595
Other accrued liabilities	4,881	5,953
Total current liabilities	10,440	10,333
Long-term liabilities:
Long-term debt, net	16,040	35,792
Long-term operating lease liabilities	1,034	932
Long-term finance lease liabilities	86	136
Other liabilities	0	934
Total liabilities	27,600	48,127
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value; 50,000,000 shares authorized; 3,770,265 shares issued and outstanding at each of March 31, 2022 and December 31, 2021	0	0
Common stock, $0.0001 par value; 500,000,000 shares authorized; 20,831,320 and 20,680,186 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively	2	2
Additional paid-in capital	437,894	436,721
Accumulated deficit	(405,813)	(391,168)
Total stockholders' equity	32,083	45,555
Total liabilities and stockholders' equity	$ 59,683	$ 93,682