ACQUISITION OF CORE ONCOLOGY'S PROSTATE BRACHYTHERAPY CUSTOMER BASE - Summary (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2012
Acquired Assets [Line Items]
Inventory	$ 253
Developed technology equipment	325
Property plant and equipment estimated life	P7Y
Intangibles
Intangibles amount	8,759
Intangible estimated life	6 years 8 months 12 days
Total estimated cost of assets acquired	9,337
Customer relationships
Intangibles
Intangibles amount	7,898
Intangible estimated life	7 years
Non-compete agreements
Intangibles
Intangibles amount	669
Intangible estimated life	5 years
Developed technology
Intangibles
Intangibles amount	$ 192
Intangible estimated life	1 year 6 months

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The amount of asset acquisition cost allocated to assets acquired.

+ References

No definition available.

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- Definition

No authoritative reference available.

+ References

No definition available.

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- Definition

The amount of acquisition cost of a assets allocated to property, plant and equipment to be used in ongoing operations.

+ References

No definition available.

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- Definition

The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 44

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2155824

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