The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Restricted Cash and Cash Equivalents, Noncurrent		$ 2,905
Asset Retirement Obligation		100	100
Property, Plant and Equipment, Net		$ 43,971	$ 43,386
Weighted Average Number of Shares Outstanding, Basic		3,803,331	3,803,331
Weighted Average Number of Shares Outstanding, Diluted		3,803,000	3,803,000
Assuming Dilution Effect Member
Weighted Average Number of Shares Outstanding, Diluted		3,849,882	3,848,002
AWMS Holdings, LLC [Member]
Equity Method Investment, Ownership Percentage		47.00%	47.00%
Annual Membership Fees [Member]
Deferred Revenue		$ 2,700	$ 2,400
Land Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life		10 years
Land Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life		30 years
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life		5 years
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life		50 years
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life		3 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life		10 years
Wells and Related Equipment and Facilities [Member]
Property, Plant and Equipment, Net		$ 4,300
Wells and Related Equipment and Facilities [Member] \| Maximum [Member] \| Scenario, Forecast [Member]
Tangible Asset Impairment Charges	$ 4,300