Destruction of Gamma Knife at NYU Medical Center; Planning for Replacement and Restoration (Details) (USD $)	6 Months Ended
Jun. 30, 2013
Destruction of Gamma Knife at NYU Medical Center; Planning for Replacement and Restoration [Abstract]
Terms of agreement with NYU	12 years
Emergency removal cost	$ 525,000
Insurance coverage	930,000
Commitment for lease financing for replacement equipment and restoration	$ 4,600,000

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The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

+ 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 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

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- Definition

Cash outflow related to disposal costs of plants, whether by demolishing, dismantling, abandoning, sale, and so forth during the period.

+ References

No definition available.

+ Details

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- Definition

Period of agreement with NYU to operate a gamma knife at their facility.

+ References

No definition available.

+ Details

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