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SCHEDULE II - VALUATION RESERVES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Balance at beginning of year	$ 2,974	$ 3,344	$ 4,527
Provision for Doubtful Accounts	541	(362)	224
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	(111)	(8)	(1,407)
Balance at end of year	$ 3,404	$ 2,974	$ 3,344

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- References

No definition available.

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- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 210
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-Section S99
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-Subparagraph (SX 210.5-02.4)
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- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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-Topic 220
-SubTopic 10
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-Paragraph 2
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Amount of decrease in valuation and qualifying accounts and reserves.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
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