CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 17,092	$ 15,070
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	722	732
Amortization of intangible assets	1,449	1,470
Unrealized gains on trading investments	(539)	(676)
Stock based compensation expense	12,298	12,164
Deferred income taxes	1,481	114
Excess tax benefits from stock based compensation	0	(165)
Other Operating Activities, Cash Flow Statement	0	275
Change in operating assets and liabilities:
Net sales of investments - trading securities	8,931	23,147
Accounts receivable	1,686	(2,711)
Other current assets	(3,881)	900
Accounts payable and accrued liabilities	178	(82)
Increase (decrease) in accrued litigation liability	8,018	0
Compensation and benefits payable	(2,696)	(6,758)
Income taxes receivable/payable	(5,181)	(4,637)
Other liabilities	(111)	154
Net cash provided by operating activities	39,447	38,997
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(537)	(1,680)
Net cash used in investing activities	(537)	(1,680)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchases of treasury stock	0	(5,629)
Payment for Repurchases of Stock for Benefit Plan	(1,326)	(614)
Restricted stock returned for payment of taxes	(5,231)	(3,710)
Excess tax benefits from stock based compensation	0	165
Other Payments to Acquire Businesses	0	(5,562)
Cash dividends paid	(16,787)	(14,827)
Net cash used in financing activities	(23,344)	(30,177)
Effect of currency rate changes on cash	2,191	812
Net Change in Cash and Cash Equivalents	17,757	7,952
Cash and cash equivalents, beginning of period	33,679	22,740
Cash and cash equivalents, end of period	51,436	30,692
Supplemental cash flow information:
Cash paid during the period for income taxes	10,245	12,632
Common stock issued for acquisition	0	3,734
Payments for (Proceeds from) Tenant Allowance	0	1,128
DividendsAccrued	$ 8,161	$ 7,682