Note 8 - Lease Liability - Schedule of Right-of-use Asset Obtained in Exchange for Operating Lease Liability (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Dec. 31, 2018 |
Jan. 01, 2019 |
Jan. 01, 2018 |
|
| Operating Lease, Right-of-Use Asset | $ 1,491 | $ 1,570 | ||
| Right-of-use assets obtained in exchange for new operating lease liabilities in the period | $ 267 |
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|