CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current Assets
Cash and cash equivalents	$ 76,646	$ 81,188
Marketable securities	33,371	19,793
Accounts receivable - net	173,071	219,511
Prepaid expenses and other current assets	8,018	6,622
Total Current Assets	291,106	327,114
Property, equipment and software - net	33,958	30,044
Goodwill	6,250	6,250
Deferred income tax asset	498	762
Other assets, non-current	1,658	7,076
TOTAL ASSETS	333,470	371,246
Current Liabilities
Accounts payable	136,003	176,731
Accrued liabilities	9,250	14,844
Total Current Liabilities	145,253	191,575
Deferred tax liability	1,577	1,561
Other liabilities, non-current	2,554	2,683
TOTAL LIABILITIES	149,384	195,819
Commitments and contingencies (Note 6)
Stockholders' Equity
Preferred stock, $0.0001 par value per share, 10,000,000 and no shares authorized as of March 31, 2021 and December 31, 2020, respectively; No shares issued and outstanding as of March 31, 2021 and December 31, 2020	0	0
Common stock, par value $0.0001 per share; 1,000,000,000 Class A shares authorized as of March 31, 2021 and December 31, 2020; 7,057,405 and 6,801,368 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively; 1,000,000,000 Class B shares authorized as of March 31, 2021 and December 31, 2020; 42,208,456 and 42,186,774 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively.	6	6
Treasury stock, at cost - 3,139,988 and 3,139,295 shares as of March 31, 2021 and December 31, 2020, respectively.	(11,461)	(11,434)
Additional paid-in capital	147,932	144,163
Accumulated other comprehensive income	0	1
Retained earnings	47,609	42,691
Total Stockholders' Equity	184,086	175,427
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 333,470	$ 371,246