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NET SALES SERVICE REVENUE AND ACCOUNTS RECEIVABLE (Schedule of Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for doubtful accounts, Beginning balance			$ (1,127)
Allowances for dubtful accounts	$ (142)	$ (56)	(226)	$ (111)
Bad debt expense			2
Total charges			(224)
Allowance for doubtful accounts, Ending balance	(1,351)		(1,351)
Medicaid [Member]
Allowances for dubtful accounts	(12)	(2)	(23)	(4)
Medicare [Member]
Allowances for dubtful accounts	(42)	(23)	(62)	(53)
Self-Pay [Member]
Allowances for dubtful accounts		(6)		(10)
Third-Party Payor [Member]
Allowances for dubtful accounts	$ (88)	$ (25)	$ (141)	$ (44)

X

- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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X

- Definition

Amount of increase (decrease) in the allowance for doubtful accounts.

+ References

No definition available.

+ Details

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- Definition

Amount of recoveries of receivables doubtful of collection that were previously charged off.

+ References

No definition available.

+ Details

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X

- Definition

The aggregate selling price reductions recognized during an accounting period due to the rendering of deficient or nonconforming services. Allowances are a deduction from gross revenue in arriving at net revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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