Note 11 - Contingencies (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2020 |
Dec. 31, 2019 |
Jul. 25, 2017 |
Jan. 27, 2017 |
Dec. 31, 2010 |
|
| Additional Royalty Due to Disallowed Deductions | $ 4,700 | $ 4,700 | |||
| Bonds Posted to Appeal IBLA Decision | $ 7,200 | ||||
| Collateral for Bonds Posted Related to Appeal with IBLA | $ 6,900 | ||||
| BSEE [Member] | |||||
| Payment for Civil Penalty | $ 0 | $ 0 | |||
| Proposed Civil Penalties | 7,700 | ||||
| Loss Contingency Accrual, Ending Balance | $ 3,500 | $ 3,500 |
| X | ||||||||||
- Definition Amount of loss contingency liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Additional royalty payments made related to revised regulation interpretations referred to as unbundling. No definition available.
|
| X | ||||||||||
- Definition Amount of bonds posted to appeal a decision made by the Interior Board of Land Appeals. No definition available.
|
| X | ||||||||||
- Definition Cash collateral deposited related to bonds posted to appeal a decision made by the Interior Board of Land Appeals. No definition available.
|
| X | ||||||||||
- Definition Payments made to government agencies for civil penalties related to incidents of non-compliance issued by the BSEE. No definition available.
|
| X | ||||||||||
- Definition The amount of civil penalties proposed. No definition available.
|
| X | ||||||||||
- Details
|