Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Jun. 30, 2013
Current assets:
Cash and cash equivalents	$ 23,702,901	$ 2,899,927
Accounts receivable, net of allowance for doubtful accounts of $71,377 and $52,598, respectively	805,326	923,780
Inventory	387,020	405,571
Prepaid expenses and other current assets	212,079	214,382
Total current assets	25,107,326	4,443,660
Fixed assets, net of accumulated depreciation and amortization	1,183,067	1,684,282
Restricted cash	181,194	181,149
Inventory, non-current	469,758	469,758
Other assets, net of accumulated amortization	258,619	276,507
Total assets	27,199,964	7,055,356
Current liabilities:
Accounts payable and accrued liabilities	609,761	432,566
Accrued protocol expense	75,057	25,305
Accrued radioactive waste disposal	130,301	100,000
Accrued payroll and related taxes	87,660	127,419
Accrued vacation	117,971	107,578
Total current liabilities	1,020,750	792,868
Warrant derivative liability	678,000	104,000
Asset retirement obligation	847,351	792,242
Total liabilities	2,546,101	1,689,110
Commitments and contingencies (Note 6)
Shareholders' equity:
Preferred stock, $.001 par value; 7,001,671 shares authorized:	59	59
Common stock, $.001 par value; 192,998,329 & 193,000,000 shares authorized; 54,181,444 and 34,618,517 shares issued and outstanding	54,181	34,618
Treasury stock, at cost 13,200 shares	(8,390)	(8,390)
Additional paid-in capital	80,980,664	57,431,293
Accumulated deficit	(56,372,651)	(52,091,334)
Total shareholders' equity	24,653,863	5,366,246
Total liabilities and shareholders' equity	27,199,964	7,055,356
Series A Preferred Stock [Member]
Shareholders' equity:
Preferred stock, $.001 par value; 7,001,671 shares authorized:
Series B Preferred Stock [Member]
Shareholders' equity:
Preferred stock, $.001 par value; 7,001,671 shares authorized:	59	59
Series C Preferred Stock [Member]
Shareholders' equity:
Preferred stock, $.001 par value; 7,001,671 shares authorized:
Series D Preferred Stock [Member]
Shareholders' equity:
Preferred stock, $.001 par value; 7,001,671 shares authorized: