Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Jun. 30, 2014
Current assets
Cash and cash equivalents	$ 63.7	$ 81.7
Other accounts receivable	7.0	0.9
Short-term investments	7.1
Contract receivable	7.4	17.8
Prepaid and other current assets	1.0	0.7
Total current assets	86.2	101.1
Non-current assets:
Long-term investments	5.8	10.0
Deferred tax asset	0.3	0.9
Property and equipment, net	1.1	2.0
Total non-current assets	7.2	12.9
Total assets	93.4	114.0
Current liabilities:
Contract payable and accrued expenses	4.4	18.6
Accounts payable	1.7	2.8
Accrued expenses	3.7	3.4
Accrued severance obligations	0.8	1.2
Deferred tax liability	0.3	0.9
Total current liabilities	10.9	26.9
Non-current liabilities:
Other liabilities, net of current portion	0.1	0.2
Total liabilities	11.0	27.1
Stockholders’ equity:
Common stock, $0.10 par value: 200,000,000 shares authorized; 35,100,961 and 35,100,961 shares issued and outstanding at December 31, 2014 and June 30, 2014, respectively	3.5	3.5
Additional paid-in capital	147.4	146.4
Accumulated other comprehensive income	21.7	26.8
Accumulated deficit	(90.2)	(89.8)
Total stockholders’ equity	82.4	86.9
Total liabilities and stockholders’ equity	$ 93.4	$ 114.0