Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 25,754	$ 28,268
Accounts receivable, net of allowance for doubtful accounts of $10 and $253 at December 31, 2020 and 2019, respectively	12,347	10,894
Prepaid expenses and other current assets	1,189	802
Total current assets	39,290	39,964
Equipment and improvements, net	2,170	2,109
Right-of-use assets	5,785	6,464
Deferred tax asset, net		94
Other assets	694	234
Intangible assets, net	12,698	4,535
Goodwill	12,266	7,797
Total assets	72,903	61,197
Current liabilities:
Accounts payable	2,282	2,050
Accrued payroll and benefits	2,867	2,107
Current operating lease liabilities	1,433	1,221
Other accrued liabilities	216	244
Deferred revenue	1,572	98
Total current liabilities	8,370	5,720
Non-current liabilities:
Operating lease liabilities	4,805	5,774
Deferred rent	887	885
Deferred tax liability, net	59
Other long term liabilities	66	134
Total non-current liabilities	5,817	6,793
Commitments and contingencies (Note 12)
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 41,232,804 and 38,475,084 shares issued and outstanding at December 31, 2020 and 2019, respectively	41	38
Additional paid-in capital	279,905	274,041
Accumulated comprehensive deficit	(221,230)	(225,395)
Total stockholders’ equity	58,716	48,684
Total liabilities and stockholders' equity	$ 72,903	$ 61,197