Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) / income	$ (120)		$ 60
Adjustments to reconcile net (loss) / income to net cash provided by operating activities:
Depreciation and amortization	760		659
Idle lease accrual	(44)		(18)
Stock-based compensation	73		20
Change in operating assets and liabilities:
Accounts receivable	(231)		(38)
Prepaid expenses and other assets	(157)		(166)
Accounts payable	(69)		(62)
Accrued expenses	(139)		(30)
Unearned revenue	813		508
Deferred rent	71		(35)
Net cash provided by operating activities	957		898
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property and equipment	(321)		(88)
Additions to internal use software	(505)		(358)
Purchases of investments	(3,031)		(3,313)
Sales of investments	2,881		1,263
Maturities of investments	2,759		2,772
Return of security deposits			45
Net cash provided by investing activities	1,783		321
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on capital lease obligations	(24)		(22)
Proceeds from exercise of stock options	81		38
Net cash provided by financing activities	57		16
Net increase in cash and cash equivalents	2,797		1,235
Cash and cash equivalents, beginning of period	3,888	[1]	3,378
Cash and cash equivalents, end of period	6,685		4,613
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Purchases under capital lease obligations	1		(117)
Property and equipment additions in accounts payable	(115)		(44)
Internal use software additions in accounts payable	$ (195)		$ (76)

[1] Derived from audited financial statements included in the 2012 Annual Report.