Note 7 - Oil and Gas Property Acquisition (Details Textual) $ in Thousands |
Jun. 30, 2019
USD ($)
|
Jun. 26, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
|---|---|---|---|
| Deposit for Acquisition | $ 10,000 | ||
| Oil and Gas Producting Properties in the Eastern Region of the Gulf of Mexico, Offshore Alabama and Related Processing Facilities [Member] | |||
| Asset Purchase Agreement, Amount | $ 200,000 | ||
| Asset Purchase Agreement, Number of Offshore Producing Fields | 9 | ||
| Deposit for Acquisition | $ 10,000 |
| X | ||||||||||
- Definition Represents the amount purchased or agreed to be purchased pursuant to an asset purchase agreement. No definition available.
|
| X | ||||||||||
- Definition Represents the number of offshore producing fields purchased or to be purchased pursuant to an asset purchase agreement. No definition available.
|
| X | ||||||||||
- Definition The amount of deposit for acquisition. No definition available.
|
| X | ||||||||||
- Details
|