Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Sep. 30, 2012	Jun. 30, 2012
Current assets:
Cash	$ 99,167	$ 399,992
Prepaid insurance and expenses	29,432	42,707
Deposits and other receivables	6,958	6,958
Total current assets	135,557	449,657
Restricted cash (Note 7)	57,315	57,315
Property and equipment, net (Note 3)	8,070,606	8,172,702
Total assets	8,263,478	8,679,674
Current liabilities:
Accounts payable and accrued expenses	817,160	711,677
Current portion of deferred compensation (Note 4)	138,833	83,083
Total current liabilities	955,993	794,760
Loan payable (Note 5)	7,754,000	7,754,000
Deferred compensation, less current portion (Note 4)	989,841	833,452
Deferred rent (Note 7)	23,726	27,992
Total liabilities	9,723,560	9,410,204
Bion's stockholders' equity (deficit):
Common stock, no par value, 100,000,000 shares authorized, 16,974,517 and 16,814,103 shares issued, respectively; 16,270,208 and 16,109,794 shares outstanding, respectively	0	0
Additional paid-in capital	92,924,358	91,177,978
Accumulated deficit	(94,516,629)	(92,065,095)
Total Bion's stockholders' deficit	(1,562,471)	(858,067)
Noncontrolling interest	82,489	83,887
Total deficit	(1,479,982)	(774,180)
Total liabilities and deficit	8,263,478	8,679,674
Series B Preferred Stock [Member]
Current liabilities:
Preferred stock	19,900	43,650
Series A Preferred Stock [Member]
Current liabilities:
Preferred stock	0	0
Series C Preferred Stock [Member]
Current liabilities:
Preferred stock	$ 29,800	$ 29,050