Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities:
Net income	$ 4,755	$ 5,192
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,427	1,508
Intangible asset amortization	3,035	3,897
Stock-based compensation	4,035	2,996
Amortization of deferred commissions	6,158	3,639
Payments of deferred commissions	(9,045)	(3,595)
Equity in losses (earnings) of affiliates	223	(66)
Realized and unrealized (gains) losses on trading securities	737	(847)
(Purchase) sale of trading securities, net	(1,853)	751
Changes in operating assets and liabilities:
Accounts receivable	(4,717)	625
Prepaid expenses and other assets	(1,318)	(61)
Accounts payable and accrued liabilities	4,970	(1,076)
Income taxes payable	(835)	(568)
Other liabilities	(909)	356
Net cash provided by operating activities	6,663	12,751
Cash Flows from Investing Activities:
Capital expenditures	(402)	(234)
Purchase of investment management contracts	(141)	(783)
Purchase of available-for-sale securities	(216)	(82)
Net cash used in investing activities	(759)	(1,099)
Cash Flows from Financing Activities:
Payment of deferred financing costs		(362)
Contingent consideration for investment management contracts	(594)
Preferred stock dividends paid	(2,113)	(2,700)
Repurchase of common shares	(7,870)
Proceeds from exercise of stock options	670	31
Taxes paid related to net share settlement of RSUs	(720)	(407)
Net cash used in financing activities	(10,627)	(3,438)
Net (decrease) increase in cash	(4,723)	8,214
Cash and cash equivalents, beginning of period	43,948	28,620
Cash and Cash Equivalents, end of period	39,225	36,834
Supplemental Cash Flow Information:
Interest paid	297	359
Income taxes paid	$ 444	$ 707