For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Note 4 - Segment Information (Details Textual) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	May 16, 2022 USD ($)
Number of Reportable Segments			2
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Exxon [Member] \| Oil and Gas [Member]
Concentration Risk, Percentage	100.00%	100.00%	100.00%	100.00%
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity					$ 50