CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 635	$ 272
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	162	145
Stock-based compensation	8	21
Deferred tax provision on other comprehensive income	1	(4)
Gain on sale of investments		(12)
Amortization of premium/(discount) on investments	(3)	(2)
Changes in assets and liabilities:
Accounts receivable	904	368
Prepaid expenses and other current assets	(194)	(514)
Deferred tax assets	127	185
Accounts payable	382	(67)
Accrued expenses	(129)	13
Accrued income taxes	(236)
Deferred revenue	(603)	(395)
Net cash provided by operating activities	1,054	10
Cash flows from investing activities:
Purchases of property and equipment	(5)	(14)
Sales of investments		529
Purchase of other assets		(320)
Net cash provided by (used in) investing activities	(5)	195
Cash flows from financing activities:
Excess tax benefits from stock-based compensation	430	582
Payments made for taxes of employees who surrendered shares related to unrestricted stock	(61)	(87)
Net cash provided by financing activities	369	495
Increase in cash and cash equivalents	1,418	700
Cash and cash equivalents, beginning of period	51,232	43,985
Cash and cash equivalents, end of period	52,650	44,685
Supplemental disclosure:
Cash paid for income taxes	$ 275	$ 5