Note 1 - Significant Accounting Policies - Schedule of Other Assets (Long-term) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Appeal bond deposits	$ 6,925	$ 6,925
Escrow deposit – Apache lawsuit (Note 18)		49,500
Unamortized debt issuance costs	3,798	4,773
Investment in White Cap, LLC	2,590	2,586
Derivatives	2,653	21,275
Unamortized brokerage fee for Monza	3,423	2,277
Proportional consolidation of Monza's other assets (Note 4)	5,308	3,275
ROU assets (Note 7)	7,936
Other assets, long-term	814	936
Total other assets	$ 33,447	$ 91,547

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Amount of lessee's right to use underlying asset under operating lease.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Proportional consolidation adjustments in other assets related to the drilling program.

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