Thyroid Cytopathology Partners (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Thyroid Cytopathology Partners
Outstanding obligations	$ 6,644,000		$ 6,644,000		$ 7,397,000
Thyroid Cytopathology Partners
Thyroid Cytopathology Partners
Notice of intent not to renew period			12 months
Expenses for cytopathology testing and evaluation services	1,200,000	$ 1,000,000	$ 3,500,000	$ 2,800,000
Outstanding obligations	800,000		800,000		$ 1,100,000
Reduction to rent expense for TCP's portion of costs for shared space	$ 23,000	$ 22,000	$ 67,000	$ 63,000

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5

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- Definition

Testing and evaluation service costs directly related to generating revenues.

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