CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 21,271	$ 12,074
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	436	288
Amortization of intangible assets	270	270
Unrealized (gains) losses on trading investments	(29)	430
Stock based compensation expense	10,103	8,512
Deferred income taxes	(4,227)	75
Excess tax benefits from stock based compensation	(1,850)	(696)
Net (purchases) sales of investments - trading securities	(8,528)	4,202
Change in operating assets and liabilities:
Accounts receivable	478	(3,241)
Other current assets	367	(480)
Accounts payable and accrued liabilities	10	369
Compensation and benefits payable	(3,887)	(668)
Income taxes payable and prepaid income taxes	6,496	(1,922)
Other liabilities	(42)	20
Net cash provided by operating activities	20,868	19,233
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(337)	(651)
Net cash used in investing activities	(337)	(651)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of treasury stock	(669)	(878)
Restricted stock returned for payment of taxes	(5,190)	(3,789)
Excess tax benefits from stock based compensation	1,850	696
Cash dividends	(10,637)	(6,346)
Net cash used in financing activities	(14,646)	(10,317)
Effect of currency rate changes on cash	(264)	(73)
NET INCREASE IN CASH AND CASH EQUIVALENTS	5,621	8,192
Cash and cash equivalents, beginning of period	10,864	3,817
Cash and cash equivalents, end of period	16,485	12,009
Supplemental cash flow information:
Cash paid during the period for income taxes	$ 9,073	$ 9,093