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
Allowance for doubtful accounts
Valuation and qualifying accounts
Balance at Beginning of Year	$ 945	$ 1,287	$ 991
Charged to Costs and Expenses	151	(48)	355
Deductions	167	294	59
Balance at End of Year	929	945	1,287
Allowance for sales discounts
Valuation and qualifying accounts
Balance at Beginning of Year	1,451	1,632	1,231
Charged to Costs and Expenses	638	(181)	401
Balance at End of Year	2,089	1,451	1,632
Allowance for deferred tax assets
Valuation and qualifying accounts
Balance at Beginning of Year	5,546	9,720	6,279
Charged to Costs and Expenses	1,397	1,458	3,600
Deductions	189	5,632	159
Balance at End of Year	$ 6,754	$ 5,546	$ 9,720

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.

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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