Consolidated Statements of Shareholders' Equity (USD $)	Preferred Stock Series A Convertible Preferred Stock	Common Stock	Accumulated Deficit	Total
Balance at Jun. 30, 2010	$ 3,148,676	$ 209,958,552	$ (190,295,056)	$ 22,812,172
Balance (in shares) at Jun. 30, 2010	444,468	25,497,155
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock at $0.90 per share less issuance cost of $230,087		5,671		5,671
Issuance of common stock at $0.90 per share less issuance cost of $230,087 (in shares)		261,953
Issuance of common stock to Lincoln Park Capital (in shares)		150,000
Issuance of common stock at $2.064 per share less the fair value of warrants issued of $1,917,122 and less cash issuance costs of $838,705		7,976,973		7,976,973
Issuance of common stock at $2.064 per share less the fair value of warrants issued of $1,917,122 and less cash issuance costs of $838,705 (in shares)		5,200,000
Exercise of 376,355 warrants at $2.20 resulting in the issuance of common stock		827,981		827,981
Exercise of 376,355 warrants at $2.20 resulting in the issuance of common stock (in shares)		376,355
Exercise of 497,367 warrants at $1.13 resulting in the issuance of common stock		562,025		562,025
Exercise of 497,367 warrants at $1.13 resulting in the issuance of common stock (in shares)		497,367
Cashless exercise of 127,497 warrants resulting in issuance of common stock (in shares)		83,472
Conversion of preferred stock into common stock	(10,620)	10,620
Conversion of preferred stock into common stock (in shares)	(1,500)	15
Conversion of $33,000 preferred dividends into common stock		33,000	(33,000)
Conversion of $33,000 preferred dividends into common stock (in shares)		33
Issuance of fully-vested shares of common stock to officers and employees and vesting of shares granted under the 2008 Stock Incentive Plan		10,208		10,208
Issuance of fully-vested shares of common stock to officers and employees and vesting of shares granted under the 2008 Stock Incentive Plan (in shares)		20,747
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2010 Stock Incentive Plan		292,263		292,263
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2010 Stock Incentive Plan (in shares)		109,918
Issuance of common stock for settlement of the Long-Term Equity Incentive Program for Fiscal Year 2010		97,566		97,566
Issuance of common stock for settlement of the Long-Term Equity Incentive Program for Fiscal Year 2010 (in shares)		86,342
Vesting of shares under the 2012 Stock Incentive Plan				43,171
Retirement of common stock		(2,261)		(2,261)
Retirement of common stock (in shares)		(2,217)
Net income (loss)			(6,457,067)	(6,457,067)
Balance at Jun. 30, 2011	3,138,056	219,772,598	(196,785,123)	26,125,531
Balance (in shares) at Jun. 30, 2011	442,968	32,281,140
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of 4,550 warrants at $2.20 resulting in issuance of common stock		10,010		10,010
Exercise of 4,550 warrants at $2.20 resulting in issuance of common stock (in shares)		4,550
Cashless exercise of 2,767 warrants resulting in issuance of common stock (in shares)		990
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2010 Stock Incentive Plan		248,851		248,851
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2010 Stock Incentive Plan (in shares)		120,472
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2011 Stock Incentive Plan		335,636		335,636
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2011 Stock Incentive Plan (in shares)		141,666
Vesting of shares under the 2012 Stock Incentive Plan		197,613		197,613
Retirement of common stock		(51,381)		(51,381)
Retirement of common stock (in shares)		(38,749)
Net income (loss)			(5,211,238)	(5,211,238)
Balance at Jun. 30, 2012	3,138,056	220,513,327	(201,996,361)	21,655,022
Balance (in shares) at Jun. 30, 2012	442,968	32,510,069
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of 382,503 warrants at $1.13 resulting in issuance of common stock		432,229		432,229
Exercise of 382,503 warrants at $1.13 resulting in issuance of common stock (in shares)		382,503
Cashless exercise of 36,186 warrant resulting in issuance of common stock (in shares)		17,094
Warrants issued in conjunction with Line of Credit Amendment		55,962		55,962
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2010 Stock Incentive Plan		68,723		68,723
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2010 Stock Incentive Plan (in shares)		62,942
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2011 Stock Incentive Plan		157,645		157,645
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2011 Stock Incentive Plan (in shares)		96,665
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2012 Stock Incentive Plan		276,539		276,539
Issuance of fully-vested shares of common stock to employees and directors and vesting of shares under the 2012 Stock Incentive Plan (In shares)		279,806
Retirement of common stock		(121,052)		(121,052)
Retirement of common stock (in shares)		(64,847)
Net income (loss)			854,123	854,123
Balance at Jun. 30, 2013	$ 3,138,056	$ 221,383,373	$ (201,142,238)	$ 23,379,191
Balance (in shares) at Jun. 30, 2013	442,968	33,284,232