CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income	$ 2,070	$ 591
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	324	309
Stock-based compensation	190	242
Deferred tax provision on other comprehensive income	6	21
Gain on sale of investments		(12)
Amortization of discount on investments	(6)	(5)
Changes in assets and liabilities:
Accounts receivable	(815)	(1,202)
Prepaid expenses and other current assets	14	(692)
Deferred tax assets	1	46
Accounts payable	821	(111)
Accrued expenses	39	118
Accrued income taxes	(236)
Deferred revenue	(1,398)	593
Net cash provided by (used in) operating activities	1,010	(102)
Cash flows from investing activities:
Purchases of property and equipment	(54)	(68)
Sales of investments		529
Purchase of other assets		(320)
Net cash provided by (used in) investing activities	(54)	141
Cash flows from financing activities:
Proceeds from issuance of common stock	21	22
Excess tax benefits from stock-based compensation	457	554
Payments made for taxes of employees who surrendered shares related to unrestricted stock	(61)	(87)
Repurchase of common stock	(349)
Net cash provided by financing activities	68	489
Increase in cash and cash equivalents	1,024	528
Cash and cash equivalents, beginning of period	51,232	43,985
Cash and cash equivalents, end of period	52,256	44,513
Supplemental disclosure:
Cash paid for income taxes	$ 833	$ 346