Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
ETF advisory fees	$ 20,230	$ 16,514	$ 39,205	$ 30,787
Other income	163	202	358	462
Total revenues	20,393	16,716	39,563	31,249
Expenses:
Compensation and benefits	5,477	4,610	11,334	9,827
Fund management and administration	5,567	5,736	11,006	9,898
Marketing and advertising	1,548	1,357	2,874	2,329
Sales and business development	842	913	1,702	1,658
Professional and consulting fees	1,401	966	2,510	1,943
Occupancy, communication, and equipment	375	285	676	558
Depreciation and amortization	75	67	146	132
Third party sharing arrangements	1,229	1,512	2,974	2,640
Other	743	457	1,352	914
ETF shareholder proxy	3,198		3,264
Litigation	(191)		481
Exchange listing		124		506
Total expenses	20,264	16,027	38,319	30,405
Income before provision for income taxes	129	689	1,244	844
Provision for income taxes
Net income	$ 129	$ 689	$ 1,244	$ 844
Net income per share-basic	$ 0.00	$ 0.01	$ 0.01	$ 0.01
Net income per share-diluted	$ 0.00	$ 0.01	$ 0.01	$ 0.01
Weighted-average common shares-basic	121,920	113,950	120,551	113,708
Weighted-average common shares-diluted	138,477	134,887	137,748	134,694