Note 9 - Recent Accounting Pronouncements (Details Textual) $ in Millions |
Sep. 30, 2018
USD ($)
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|---|---|
| Lessee, Operating Lease, Liability, Payments, Due, Total | $ 17.4 |
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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