Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Current assets:
Cash and cash equivalents	$ 81.7	$ 66.8
Contract receivable (BARDA)	17.8	10.9
Other accounts receivable	0.9	0.1
Prepaid expenses and other assets	0.7	2.2
Total current assets	101.1	80.0
Non-current assets:
Long-term investments	10.0
Deferred tax asset	0.9	1.5
Property and equipment, net	2.0	4.3
Total non-current assets	12.9	5.8
Total assets	114.0	85.8
Current liabilities:
Contract payables and accrued expenses (BARDA)	26.0	15.8
Accrued expenses and other current liabilities	3.4	3.9
Accounts payable	2.8	2.4
Accrued severance obligations	1.2	3.0
Deferred tax liability	0.9	1.5
Deferred revenue		0.3
Total current liabilities	26.9	17.6
Other liabilities, net of current portion	0.2	0.2
Total liabilities	27.1	17.8
Stockholders’ equity:
Common stock, $0.10 par value; 200,000,000 shares authorized 35,100,961 shares and 28,352,326 shares issued and outstanding at June 30, 2014 and June 30, 2013, respectively	3.5	2.8
Additional paid-in capital	146.4	118.7
Accumulated other comprehensive income	26.8	25.3
Accumulated deficit	(89.8)	(78.8)
Total stockholders’ equity	86.9	68.0
Total liabilities and stockholders’ equity	114.0	85.8
BARDA
Current assets:
Contract receivable (BARDA)	17.8
Current liabilities:
Contract payables and accrued expenses (BARDA)	$ 18.6	$ 6.5