Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Jun. 30, 2014
Current assets
Cash and cash equivalents	$ 61.5	$ 81.7
Accounts receivable	10.1	0.9
Short-term investments	12.0
Contract receivable	2.9	17.8
Prepaid and other current assets	0.9	0.7
Total current assets	87.4	101.1
Non-current assets:
Long-term investments	0.9	10.0
Property and equipment, net	0.3	2.0
Deferred tax asset	0.2	0.9
Total non-current assets	1.4	12.9
Total assets	88.8	114.0
Current liabilities:
Contract payable and accrued expenses	1.1	18.6
Accounts payable	1.0	2.8
Accrued expenses	4.5	3.4
Accrued severance obligations	0.4	1.2
Deferred tax liability	0.2	0.9
Total current liabilities	7.2	26.9
Non-current liabilities:
Other liabilities, net of current portion	0.1	0.2
Total liabilities	7.3	27.1
Stockholders’ equity:
Common stock, $0.10 par value: 200,000,000 shares authorized; 35,124,728 and 35,100,961 shares issued and outstanding at March 31, 2015 and June 30, 2014, respectively	3.5	3.5
Additional paid-in capital	148.0	146.4
Accumulated other comprehensive income	19.0	26.8
Accumulated deficit	(89.0)	(89.8)
Total stockholders’ equity	81.5	86.9
Total liabilities and stockholders’ equity	$ 88.8	$ 114.0