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Note 9 - Equity Method Investment (Details) - TEL’s Summarized Financial Information - Income Statement (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
TEL’s Summarized Financial Information - Income Statement [Abstract]
Revenue	$ 23,242	$ 12,837	$ 40,889	$ 23,166
Operating Expenses	20,956	11,355	36,493	20,375
Operating Income	2,286	1,482	4,396	2,791
Net Income	$ 1,766	$ 1,197	$ 3,427	$ 2,208

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- Definition

The amount of the cost of sales reported by an equity method investment of the entity.

+ References

No definition available.

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- Definition

The amount of income (loss) from continuing operations before extraordinary items reported by an equity method investment of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph bb

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

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-Number 210

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 323

-SubTopic 10

-Section 50

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The amount of net income (loss) reported by an equity method investment of the entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

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-Name Regulation S-X (SX)

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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