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Revenue Recognition (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($) Distributor Customer	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Distributor Customer	Sep. 30, 2014 USD ($) Distributor	Dec. 31, 2014 Distributor
Concentration Risk [Table]
Revenues	$ 766,000	$ 518,000	$ 3,281,000	$ 2,484,000
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Customer Concentration Risk [Member] | Revenue Recognized [Member]
Concentration Risk [Table]
Number of distributors | Distributor	1		2	5
Number of customers | Customer	3		3
Concentration risk percentage	72.00%		67.00%	62.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Concentration Risk [Table]
Number of distributors | Distributor			3		3
Number of customers | Customer			3
Concentration risk percentage			63.00%		92.00%
BARDA Contract [Member]
Research and Development Arrangements [Line Items]
Revenue recognized	$ 1,700,000	$ 600,000	$ 5,000,000	$ 1,300,000
Americas [Member]
Concentration Risk [Table]
Revenues	$ 120,000	$ 175,000	$ 597,000	$ 614,000
Concentration risk percentage	16.00%	34.00%	18.00%	25.00%
Japan [Member]
Concentration Risk [Table]
Revenues	$ 451,000	$ 60,000	$ 1,408,000	$ 1,323,000
Concentration risk percentage	59.00%	12.00%	43.00%	53.00%
Europe [Member]
Concentration Risk [Table]
Revenues	$ 75,000	$ 271,000	$ 491,000	$ 535,000
Concentration risk percentage	10.00%	52.00%	15.00%	22.00%
Asia Pacific [Member]
Concentration Risk [Table]
Revenues	$ 120,000	$ 12,000	$ 785,000	$ 12,000
Concentration risk percentage	16.00%	2.00%	24.00%	0.00%

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