Consolidated Statements of Stockholders' Equity (USD $)	Total	Common Stock [Member]	Paid in capital in excess of par [Member]	Accumulated deficit [Member]
Balance at Jun. 30, 2009	$ 22,454,000	$ 14,000	$ 120,799,000	$ (98,359,000)
Balance (in shares) at Jun. 30, 2009		14,023,240
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	518,000		518,000
Net loss	(5,193,000)			(5,193,000)
Balance at Jun. 30, 2010	17,779,000	14,000	121,317,000	(103,552,000)
Balance (in shares) at Jun. 30, 2010		14,023,240
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	814,000		814,000
Net loss	(2,567,000)			(2,567,000)
Issuance of common shares and warrants in public offering	3,914,000	2,000	3,912,000
Issuance of common shares and warrants in public offering (in shares)	2,250,000	2,250,000
Issuance of common shares for exercise of options	7,000		7,000
Issuance of common shares for exercise of options (in shares)		2,917
Issuance of common shares and compensation related to restricted common stock awards	146,000		146,000
Issuance of common shares and compensation related to restricted common stock awards (in shares)		70,117
Fractional shares issued pursuant to reverse stock split (in shares)		92
Balance at Jun. 30, 2011	20,093,000	16,000	126,196,000	(106,119,000)
Balance (in shares) at Jun. 30, 2011	16,346,366	16,346,366
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	377,000		377,000
Net loss	(4,986,000)			(4,986,000)
Issuance of common shares and compensation related to restricted common stock awards	326,000		326,000
Issuance of common shares and compensation related to restricted common stock awards (in shares)		6,700
Issuance of common shares and compensation related to unrestricted common stock awards	88,000		88,000
Issuance of common shares and compensation related to unrestricted common stock awards (in shares)		60,000
Balance at Jun. 30, 2012	$ 15,898,000	$ 16,000	$ 126,987,000	$ (111,105,000)
Balance (in shares) at Jun. 30, 2012	16,413,066	16,413,066