Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Healthcare	$ 27,615	$ 22,854	$ 56,845	$ 47,079
Commuter	13,220	8,382	25,212	16,589
Other	2,942	2,625	6,030	5,517
Total revenue	43,777	33,861	88,087	69,185
Operating expenses:
Cost of revenues (excluding amortization of internal use software)	15,620	13,244	32,677	28,610
Technology and development	4,622	3,447	8,962	6,939
Sales and marketing	7,267	5,209	14,476	10,458
General and administrative	7,325	5,104	14,803	10,466
Amortization and change in contingent consideration	4,094	2,682	8,532	5,175
Total operating expenses	38,928	29,686	79,450	61,648
Income from operations	4,849	4,175	8,637	7,537
Other income (expense):
Interest income	9	9	19	20
Interest expense	(452)	(111)	(857)	(197)
Gain (loss) on revaluation of warrants	407	51	381	(59)
Other income	12		27
Income before income taxes	4,825	4,124	8,207	7,301
Income tax provision	(1,601)	(253)	(2,973)	(401)
Net income	3,224	3,871	5,234	6,900
Accretion of redemption premium expense	(778)	(2,924)	(2,301)	(5,692)
Net income attributable to common stockholders	$ 2,446	$ 947	$ 2,933	$ 1,208
Basic net income per share attributable to common stockholders	$ 0.17	$ 0.62	$ 0.37	$ 0.79
Diluted net income per share attributable to common stockholders	$ 0.10	$ 0.06	$ 0.13	$ 0.07
Shares used in basic net income per share calculations	14,268	1,535	7,907	1,534
Shares used in diluted net income per share calculations	24,349	16,450	20,683	16,376