Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Mar. 31, 2013	Jun. 30, 2012
Current assets:
Cash	$ 58,058	$ 399,992
Restricted cash (Note 8)	57,315
Prepaid insurance and expenses	29,738	42,707
Deposits and other receivables	12,038	6,958
Total current assets	157,149	449,657
Restricted cash (Note 8)		57,315
Property and equipment, net (Note 3)	7,577,674	8,172,702
Total assets	7,734,823	8,679,674
Current liabilities:
Accounts payable and accrued expenses	1,021,918	711,677
Deferred revenue	1,483
Deferred rent (Note 8)	15,195
Loans payable - affiliates (Note 4)	128,275
Current portion of deferred compensation (Note 5)	1,556,833	83,083
Loan payable (Note 6)	7,754,000
Total current liabilities	10,477,704	794,760
Loan payable (Note 6)		7,754,000
Deferred compensation, less current portion (Note 5)		833,452
Deferred rent (Note 8)		27,992
Total liabilities	10,477,704	9,410,204
Common stock, no par value, 100,000,000 shares authorized, 17,436,618 and 16,814,103 shares issued, respectively; 16,732,309 and 16,109,794 shares outstanding, respectively	0	0
Additional paid-in capital	93,944,129	91,177,978
Accumulated deficit	(96,787,540)	(92,065,095)
Total Bion's stockholders' deficit	(2,843,411)	(858,067)
Noncontrolling interest	79,630	83,887
Total deficit	(2,763,781)	(774,180)
Total liabilities and deficit	7,734,823	8,679,674
Series B Preferred Stock [Member]
Current liabilities:
Preferred stock	20,900	43,650
Series A Preferred Stock [Member]
Current liabilities:
Preferred stock	0	0
Series C Preferred Stock [Member]
Current liabilities:
Preferred stock	$ 0	$ 29,050