Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Statement of Cash Flows [Abstract]
Net loss	$ (11,999,885)	$ (9,506,700)
Depreciation and amortization	737,120	865,507
Loss (gain) on sale of supplies, equipment and securities	(4,700)	5,666
Gain on sale of available-for-sale investments		(119,346)
Stock-based compensation	716,300	516,270
Increase in fair value of warrants		(1,257,691)
Accounts receivable	114,549	2,879
Prepaid expenses and other assets	(215,892)	(12,750)
Accounts payable	60,994	230,466
Accrued expenses and compensation	578,144	(1,201,833)
Unearned revenues	(46,105)	70,796
Net cash used in operating activities	(10,059,475)	(7,891,354)
Proceeds from sale of supplies and equipment	4,700	5,300
Purchases of property and equipment	(15,000)
Proceeds from sale of available-for-sale investments		3,442,885
Net cash provided by (used in) investing activities	(10,300)	3,448,185
Payments on capital lease obligations	(29,615)	(14,561)
Payment of withholding taxes related to restricted stock units		(26,196)
Proceeds from sale of common stock units and warrant and exercise of common stock options		21,111,145
Net cash provided by (used in) financing activities	(29,615)	21,070,388
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(10,099,390)	16,627,219
CASH AND CASH EQUIVALENTS, beginning of period	18,869,639	5,405,430
CASH AND CASH EQUIVALENTS, end of period	8,770,249	22,032,649
Cash paid for interest	6,650	5,607
Unrealized gain on available-for-sale investments		$ (19,304)