Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 6,611	$ 12,159
Accounts receivable, net of allowances for doubtful accounts and other adjustments of $143 (2019) and $135 (2018)	13,017	7,130
Prepaid expenses and other current assets	938	795
Total current assets	20,566	20,084
Equipment and improvements, net	930	865
Right-of-use assets	6,708
Deferred tax assets, net	191	191
Other assets	267	140
Intangible assets, net	5,002	238
Goodwill	7,797	3,685
Total assets	41,461	25,203
Current liabilities:
Accounts payable	1,227	1,160
Accrued payroll and benefits	2,232	1,745
Current operating lease liabilities	1,057
Other accrued liabilities	246	450
Deferred revenue	183	28
Total current liabilities	4,945	3,383
Non-current liabilities:
Operating lease liabilities	6,135
Deferred rent	547	723
Other long term liabilities	168	534
Total non-current liabilities	6,850	1,257
Commitments and contingencies
Stockholders' equity:
Preferred stock, par value $0.001 per share; 5,000,000 shares authorized; 5,500 shares issued (2019 and 2018); 1,335 and 1,345 shares outstanding (2019 and 2018, respectively)
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 32,041,685 and 28,241,129 shares issued and outstanding (2019 and 2018, respectively)	32	28
Additional paid-in capital	262,215	256,626
Accumulated comprehensive deficit	(232,581)	(236,091)
Total stockholders’ equity	29,666	20,563
Total liabilities and stockholders' equity	$ 41,461	$ 25,203