XML 31 R16.htm IDEA: XBRL DOCUMENT v3.8.0.1

Note 1 - Significant Accounting Policies (Details Textual) shares in Thousands, $ in Thousands		3 Months Ended
	Jan. 21, 2018	Mar. 31, 2018 USD ($) shares	Mar. 31, 2017 USD ($) shares	Dec. 31, 2017 USD ($)	Sep. 23, 2016 USD ($)	Dec. 31, 2015 USD ($)	Mar. 09, 2011 USD ($)
Long-term Line of Credit, Total		$ 15,114		$ 16,750
Restricted Cash and Cash Equivalents, Current, Total		4,599		3,286
Loss on Sale of Investments		0
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0	$ 0
Interest Expense, Debt, Total		2,136	2,020
Amortization of Debt Issuance Costs		232	220
Interest Expense, Total		2,221	$ 2,100
Lease Financing Obligation, Net of Current		$ 2,731		2,751
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares		1,775	2,762
RAPIVAB [Member] | Customer Concentration Risk [Member] | Sales Revenue, Product Line [Member]
Number of Major Customers		3
RAPIVAB [Member] | Customer Concentration Risk [Member] | Sales Revenue, Product Line [Member] | Three Customers [Member]
Concentration Risk, Percentage		90.00%
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivative, Loss on Derivative		$ 1,804	$ 1,543
Currency Hedge Agreement [Member]
Collateral Already Posted, Aggregate Fair Value		0		0
Birmingham Research Facility [Member]
Interest Expense, Total		82	$ 80
Lease Financing Obligation, Net of Current		2,703		$ 2,703
Capital Leases, Future Minimum Payments Due, Total		$ 4,225
Computer Equipment [Member]
Property, Plant and Equipment, Useful Life		3 years
Laboratory Equipment, Office Equipment and Software [Member]
Property, Plant and Equipment, Useful Life		5 years
Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life		7 years
Leasehold Improvements [Member] | Birmingham Research Facility [Member]
Property, Plant and Equipment, Useful Life		20 years 182 days
Property, Plant and Equipment, Gross, Ending Balance						$ 1,589
Maximum [Member]
Maturity Period of High Quality Marketable Securities		3 years
Average Maturity Period of High Quality Marketable Securities		1 year 180 days
Maturity Period of Short Term Investment		1 year
Average Maturity for Portfolio Investments		1 year 180 days
Minimum [Member]
Maturity Period of Short Term Investment		90 days
Long-term Investment Maturity, Minimum		1 year
Royalty Receivable [Member]
Restricted Cash and Cash Equivalents, Current, Total		$ 3,188
Collateral for Credit [Member]
Restricted Cash and Cash Equivalents, Current, Total		1,411
Senior Credit Facility [Member] | MidCap Financial Services, LLC [Member]
Long-term Line of Credit, Total		$ 21,275			$ 23,000
JPR Royalty Sub LLC [Member]
Revenue Recognition Royalty and Milestone Revenue Recognized							$ 30,000
Merger Agreement [Member]
Idera Exchange Ratio	0.2
BioCryst Exchange Ratio	0.5
Merger Agreement [Member] | Baker Brother [Member] | BioCryst [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	14.00%
Merger Agreement [Member] | Baker Brother [Member] | Idera [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	18.00%

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