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Note 1 - Summary of Receivables (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
US Department of Health and Human Services [Member] | Billed Revenues [Member] |  |
Receivables | $ 2,475 |
US Department of Health and Human Services [Member] | Unbilled Revenues [Member] |  |
Receivables | 2,734 | $ 5,536
US Department of Health and Human Services [Member] |  |
Receivables | 5,209 | 5,536
Shionogi and Co. Ltd [Member] | Billed Revenues [Member] |  |
Receivables | $ 1,685 | $ 469
Shionogi and Co. Ltd [Member] | Unbilled Revenues [Member] |  |
Receivables |  |
Shionogi and Co. Ltd [Member] |  |
Receivables | $ 1,685 | $ 469
Seqirus UK Limited [Member] | Billed Revenues [Member] |  |
Receivables | 336 | 210
Seqirus UK Limited [Member] | Unbilled Revenues [Member] |  |
Receivables | 154 | 28
Seqirus UK Limited [Member] |  |
Receivables | 490 | 238
Billed Revenues [Member] |  |
Receivables | 4,496 | 679
Unbilled Revenues [Member] |  |
Receivables | 2,888 | 5,564
Receivables | $ 7,384 | $ 6,243

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- Definition The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-06(3)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e604059-122996 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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