Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 28,268	$ 12,159
Accounts receivable, net of allowances for doubtful accounts and other adjustments of $253 and $135 at December 31, 2019 and 2018, respectively	10,894	7,130
Prepaid expenses and other current assets	802	795
Total current assets	39,964	20,084
Equipment and improvements, net	2,109	865
Right-of-use assets	6,464
Deferred tax asset, net	94	191
Other assets	234	140
Intangible assets, net	4,535	238
Goodwill	7,797	3,685
Total assets	61,197	25,203
Current liabilities:
Accounts payable	2,050	1,160
Accrued payroll and benefits	2,107	1,745
Current operating lease liabilities	1,221
Other accrued liabilities	244	450
Deferred revenue	98	28
Total current liabilities	5,720	3,383
Non-current liabilities:
Operating lease liabilities	5,774
Deferred rent	885	723
Other long term liabilities	134	534
Total non-current liabilities	6,793	1,257
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred stock, par value $0.001 per share; 5,000,000 shares authorized; 0 and 1,345 shares issued and outstanding at December 31, 2019 and 2018, respectively
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 38,475,084 and 28,241,129 shares issued and outstanding at December 31, 2019 and 2018, respectively	38	28
Additional paid-in capital	274,041	256,626
Accumulated comprehensive deficit	(225,395)	(236,091)
Total stockholders’ equity	48,684	20,563
Total liabilities and stockholders' equity	$ 61,197	$ 25,203