Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Jun. 30, 2013
Current assets:
Accounts receivable, allowance for doubtful accounts	$ 39	$ 47
Equipment, accumulated depreciation	$ 3,773	$ 3,277
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	80,000,000	80,000,000
Common stock, shares issued (in shares)	32,641,379	16,557,627
Common stock, shares outstanding (in shares)	32,641,379	16,557,627