Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Consolidated Balance Sheets [Abstract]
Interest-bearing investments	$ 2,641	$ 4,446
Allowance for doubtful accounts, net	$ 452	$ 468
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	28,566,651	27,744,932
Common stock, shares outstanding	16,389,059	15,877,729