Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 27, 2012
IBio Inc [Member] | Minimum [Member]
Share Price	$ 0.88	$ 0.88
IBio Inc [Member] | Minimum Share Price Acceptable Before Required to Sell [Member]
Share Price	$ 0.88	$ 0.88
IBio Inc [Member]
Consecutive Trading Days for Stock Price Threshold		15 days
Equity Method Investment, Ownership Percentage	6.00%	6.00%
Investment Owned, Balance, Shares	1,266,706	1,266,706
Asset Impairment Charges		$ 2,200,000
Investment Owned, at Fair Value	$ 1,100,000	$ 1,100,000
Investment, Shares Sold	73,191
Proceeds from Sale of Long-term Investments	$ 79,000
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life		13 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life		20 years
Liability for Uncertain Tax Positions, Current	0	$ 0	$ 0
Impairment of Long-Lived Assets Held-for-use		0	0
Shipping, Handling and Transportation Costs		247,000	256,000
Advertising Expense		$ 38,000	4,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Allowance for Doubtful Accounts Receivable	$ 71,000	$ 71,000	$ 91,000
Share Price	$ 0.09	$ 0.09	$ 0.25	$ 0.09
Proceeds from Sale of Long-term Investments		$ 79,000