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
Changes in valuation and qualifying accounts
Balance at Beginning of Year	$ 1,407	$ 1,447	$ 1,622
Additions Charged to Operations	463	1,361	830
Deduction from Reserves	(1,444)	(1,401)	(1,005)
Balance at End of Year	426	1,407	1,447
Valuation allowance for deferred tax assets
Changes in valuation and qualifying accounts
Balance at Beginning of Year	987	737	719
Additions Charged to Operations	43	293	131
Deduction from Reserves	(225)	(43)	(113)
Balance at End of Year	$ 805	$ 987	$ 737

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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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