Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 65,749	$ 47,659
Accounts receivable net of allowance for doubtful accounts of $1,069 and $982 as of September 30, 2019 and December 31, 2018 respectively.	114,382	104,387
Prepaid expenses and other current assets	3,903	3,381
Total current assets	184,034	155,427
Long-term assets:
Operating lease right-of-use asset, net of amortization	24,132	0
Property and equipment net of accumulated depreciation of $3,353 and $2,696 as of September 30, 2019 and December 31, 2018, respectively	2,167	2,789
Intangible assets, net	3,601	4,379
Goodwill	9,277	9,478
Deferred tax assets	126	193
Other assets	1,998	2,440
Total long-term assets	41,301	19,279
Total assets	225,335	174,706
Current liabilities:
Accounts payable and accrued expenses	137,646	109,991
Operating lease liability	5,078
Deferred rent		797
Contingent consideration on acquisition	0	1,500
Other current liabilities	171	886
Total current liabilities	142,895	113,174
Long-term liabilities:
Operating lease liability, net of current portion	24,987
Deferred rent, net of current portion		5,759
Deferred tax liabilities	1,099	1,153
Other non-current liabilities	218	225
Total liabilities	169,199	120,311
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.0001 par value: 250,000,000 shares authorized as of September 30, 2019 and December 31, 2018, 59,111,023 and 56,956,935 shares issued and 46,546,783 and 44,392,695 outstanding as of September 30, 2019 and December 31, 2018, respectively	4	4
Treasury stock, at cost: 12,564,240 shares as of September 30, 2019 and December 31, 2018	(31,980)	(31,980)
Additional paid-in capital	303,393	293,154
Accumulated other comprehensive loss	(829)	(949)
Accumulated deficit	(214,452)	(205,834)
Total stockholders’ equity	56,136	54,395
Total liabilities and stockholders’ equity	$ 225,335	$ 174,706