This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of long-term debt instruments that have contractual principal amounts and for which the fair value option has been elected.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Name:	us-gaap_FairValueOptionAggregateDifferencesLongTermDebtInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Note 3 - Fair Value Measurement (Details Textual) - USD ($) $ in Millions	Nov. 06, 2018	Sep. 25, 2018	Sep. 30, 2018
Fair Value, Option, Aggregate Differences, Long-term Debt Instruments			$ 1.2
MidCap Agreement [Member] \| MidCap Financial [Member]
Extinguishment of Debt, Amount		$ 33.0
Subsequent Event [Member] \| MidCap Agreement [Member] \| MidCap Financial [Member]
Extinguishment of Debt, Amount	$ 33.0
Debt Instrument, Prepayment and Exit Fees	$ 3.0