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Note 1 - Significant Accounting Policies - Summary of Receivables (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Receivables | $ 9,564 | $ 8,768
Billed Revenues [Member] |  |
Receivables | 7,221 | 5,094
Unbilled Revenues [Member] |  |
Receivables | 2,343 | 3,674
US Department of Health and Human Services [Member] |  |
Receivables | 2,300 | 3,495
US Department of Health and Human Services [Member] | Billed Revenues [Member] |  |
Receivables | 114 |
US Department of Health and Human Services [Member] | Unbilled Revenues [Member] |  |
Receivables | 2,186 | 3,495
Shionogi and Co. Ltd [Member] |  |
Receivables | 5,834 | 3,451
Shionogi and Co. Ltd [Member] | Billed Revenues [Member] |  |
Receivables | 5,834 | 3,451
Shionogi and Co. Ltd [Member] | Unbilled Revenues [Member] |  |
Receivables |  |
Green Cross Corporation [Member] |  |
Receivables | 382 | 686
Green Cross Corporation [Member] | Billed Revenues [Member] |  |
Receivables | 382 | 686
Green Cross Corporation [Member] | Unbilled Revenues [Member] |  |
Receivables |  |
Seqirus UK Limited [Member] |  |
Receivables | 1,048 | 1,136
Seqirus UK Limited [Member] | Billed Revenues [Member] |  |
Receivables | 891 | 957
Seqirus UK Limited [Member] | Unbilled Revenues [Member] |  |
Receivables | $ 157 | $ 179

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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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