SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Doubtful trade receivables and returns and allowances [Member]
Valuation and qualifying accounts [Roll Forward]
Balance Beginning of Year	$ 1,058	$ 652	$ 450
Charged/(Credited) to Cost and Expenses	61	433	193
Charged/(Credited) to Other Accounts	(130)	27	12
Deductions	643	54	3
Balance End of Year	346	1,058	652
Deferred tax valuation allowance [Member]
Valuation and qualifying accounts [Roll Forward]
Balance Beginning of Year	29,890	29,941	77,571
Charged/(Credited) to Cost and Expenses	(26,543)	(97)	(45,105)
Charged/(Credited) to Other Accounts	1,706	46	(2,525)
Deductions	0	0	0
Balance End of Year	$ 5,053	$ 29,890	$ 29,941

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Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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- Definition

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- Definition

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