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Note 2 - Trade Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

		2013				2012
		(in thousands)
Billed		$	50,168			$	44,374
Unbilled			9,793				6,800
Allowance for doubtful accounts			(1,477	)			(1,157	)
Total accounts receivable—net		$	58,484			$	50,017

Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]

		2013				2012				2011
		(in thousands)
Balance—beginning of year		$	1,157			$	2,074			$	2,418
Provision for bad debts			424				191				22
Charge-offs			(104	)			(1,108	)			(565	)
Recoveries			-				-				199
Balance—end of year		$	1,477			$	1,157			$	2,074

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3,4)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3, 4

-Article 5

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- Definition

Tabular disclosure of the activity in the total allowance for credit losses related to financing receivables (such as loans or lease receivables) for entities that have an unclassified balance sheet, including the balance in the allowance at the beginning and end of each period, additions charged to operations, direct write-downs charged against the allowance, and recoveries of amounts previously charged off.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524

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