CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 14,581	$ 7,712
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	288	187
Amortization of intangible assets	180	180
Unrealized (gains) losses on trading investments	(134)	639
Restricted stock amortization	5,796	5,692
Deferred income taxes	2,389	937
Excess tax benefits from stock based compensation	(1,916)	(684)
Net sales of investments - trading securities	6,927	7,880
Change in operating assets and liabilities:
Accounts receivable	(2,236)	(4,003)
Other current assets	919	(864)
Accounts payable and accrued liabilities	(166)	(71)
Compensation and benefits payable	(8,683)	(5,931)
Income taxes payable and prepaid income taxes	(1,189)	(1,991)
Other liabilities	(29)	18
Net cash provided by operating activities	16,727	9,701
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(302)	(313)
Net cash used in investing activities	(302)	(313)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of treasury stock	(5,839)	(4,637)
Excess tax benefits from stock based compensation	1,916	684
Cash dividends	(7,291)	(2,988)
Net cash used in financing activities	(11,214)	(6,941)
Effect of currency rate changes on cash	(12)	(131)
NET INCREASE IN CASH AND CASH EQUIVALENTS	5,199	2,316
Cash and cash equivalents, beginning of period	10,864	3,817
Cash and cash equivalents, end of period	16,063	6,133
Supplemental cash flow information:
Cash paid during the period for income taxes	$ 6,978	$ 5,723