Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 54,164	$ 47,659
Accounts receivable, net	157,317	104,387
Prepaid expenses and other current assets	4,605	3,381
Total current assets	216,086	155,427
Long-term assets:
Operating lease right-of-use asset, net of amortization	23,793	0
Property and equipment, net	1,990	2,789
Intangible assets, net	3,548	4,379
Goodwill	9,403	9,478
Deferred tax asset	104	193
Other assets	1,926	2,440
Total long-term assets	40,764	19,279
Total assets	256,850	174,706
Current liabilities:
Accounts payable and accrued expenses	168,818	109,991
Operating lease liability, current portion	5,487	0
Deferred rent, current portion	0	797
Contingent consideration on acquisition	0	1,500
Other current liabilities	349	886
Total current liabilities	174,654	113,174
Long-term liabilities:
Operating lease liability, net of current portion	24,046	0
Deferred rent, net of current portion	0	5,759
Deferred tax liabilities	1,050	1,153
Other liabilities	323	225
Total liabilities	200,073	120,311
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.0001 par value: 250,000,000 shares authorized as of December 31, 2019 and 2018, respectively; 59,481,057 and 56,956,935 shares issued and 46,916,817 and 44,392,695 shares outstanding as of December 31, 2019 and 2018, respectively	4	4
Treasury stock, 12,564,240 shares at cost as of December 31, 2019 and 2018, respectively	(31,980)	(31,980)
Additional paid-in capital	304,781	293,154
Accumulated other comprehensive loss	(1,187)	(949)
Accumulated deficit	(214,841)	(205,834)
Total stockholders’ equity	56,777	54,395
Total liabilities and stockholders’ equity	$ 256,850	$ 174,706