Organization and Business	12 Months Ended
Dec. 31, 2014
Organization and Business [Abstract]
Organization and Business	Note A – Organization and Business U.S. NeuroSurgical, Inc. (“USN” or the “Company”), a Delaware corporation, was organized in July 1993 for the purpose of owning and operating stereotactic radiosurgery centers, utilizing the gamma knife technology. USN owns one gamma knife center on the premises of New York University Medical Center (“NYU”) in New York, New York. Management continues to explore opportunities to organize and participate in additional gamma knife centers. USN's business strategy is to provide a mechanism whereby hospitals, physicians, and patients can have access to gamma knife treatment capability, a high capital cost item. USN provides the gamma knife to medical facilities on a "cost per treatment" basis. USN holds an interest in the gamma knife unit, and is reimbursed by the facility where it is housed, based on utilization. During the fourth quarter of 2007, USN formed a wholly-owned subsidiary, USN Corona, Inc. (“USNC”), to carry investments in Corona Gamma Knife, LLC and NeuroPartners, LLC. Those investments were formed to develop and manage a gamma knife center at San Antonio Regional Hospital in Upland, California. (See Note C[1]) During 2010, USN expanded its market strategy to include opportunities to develop cancer centers featuring radiation therapy. These centers utilize linear accelerators with IMRT (Intensity Modulated Radiation Therapy) and IGRT (Image Guided Radiation Therapy) capabilities. In 2010, the Company formed Florida Oncology Partners, LLC in partnership with local physicians and other investors. USNC owns a 20% interest in the venture. The center is located in Miami and opened in the second quarter of 2011. (See Note C[2]) In 2011, the Company formed Boca Oncology Partners, LLC in partnership with local physicians and other investors. USNC initially owned a 22.5% interest in the venture. Following a sale of 50% of the Company’s interest in 2012 the Company’s interest in Boca Oncology Partners decreased to 11.25%. The center is located in Boca Raton, Florida, and was opened in the third quarter of 2012. In February 2014, the Company and other members sold their interests in BOP. (See Note C[3]) In early 2013, the Company formed Broward Oncology Partners, LLC (“BROP”) with other outside investors. The Company invested $50,000 for a 12.5% ownership interest in BROP. BROP operates a radiation oncology center in Fort Lauderdale, Florida under a lease from Tenet Health Services. BROP began operations in February 2013. The facility is undergoing renovation and continues to operate on a limited basis during construction. In May 2014, the Company and other members sold their interests in BROP. (See Note C[4]) On October 29, 2012, the Company’s facility at NYU was totally destroyed as a result of flooding from Hurricane Sandy. During 2014, the Company finalized arrangements with NYU regarding the restoration of the gamma knife center and the Company’s long term contract with NYU. The location of the restored facility, with the new Leksell PERFECTION gamma knife, is in the Tisch Hospital of NYU Langone Medical Center. The center reopened, and the first patient was treated on April, 29, 2014. (See Note D)

Note A – Organization and Business

U.S. NeuroSurgical, Inc. (“USN” or the “Company”), a Delaware corporation, was organized in July 1993 for the purpose of owning and operating stereotactic radiosurgery centers, utilizing the gamma knife technology. USN owns one gamma knife center on the premises of New York University Medical Center (“NYU”) in New York, New York. Management continues to explore opportunities to organize and participate in additional gamma knife centers. USN's business strategy is to provide a mechanism whereby hospitals, physicians, and patients can have access to gamma knife treatment capability, a high capital cost item. USN provides the gamma knife to medical facilities on a "cost per treatment" basis. USN holds an interest in the gamma knife unit, and is reimbursed by the facility where it is housed, based on utilization.

During the fourth quarter of 2007, USN formed a wholly-owned subsidiary, USN Corona, Inc. (“USNC”), to carry investments in Corona Gamma Knife, LLC and NeuroPartners, LLC. Those investments were formed to develop and manage a gamma knife center at San Antonio Regional Hospital in Upland, California. (See Note C[1])

During 2010, USN expanded its market strategy to include opportunities to develop cancer centers featuring radiation therapy. These centers utilize linear accelerators with IMRT (Intensity Modulated Radiation Therapy) and IGRT (Image Guided Radiation Therapy) capabilities. In 2010, the Company formed Florida Oncology Partners, LLC in partnership with local physicians and other investors. USNC owns a 20% interest in the venture. The center is located in Miami and opened in the second quarter of 2011. (See Note C[2])

In 2011, the Company formed Boca Oncology Partners, LLC in partnership with local physicians and other investors. USNC initially owned a 22.5% interest in the venture. Following a sale of 50% of the Company’s interest in 2012 the Company’s interest in Boca Oncology Partners decreased to 11.25%. The center is located in Boca Raton, Florida, and was opened in the third quarter of 2012. In February 2014, the Company and other members sold their interests in BOP. (See Note C[3])

In early 2013, the Company formed Broward Oncology Partners, LLC (“BROP”) with other outside investors. The Company invested $50,000 for a 12.5% ownership interest in BROP. BROP operates a radiation oncology center in Fort Lauderdale, Florida under a lease from Tenet Health Services. BROP began operations in February 2013. The facility is undergoing renovation and continues to operate on a limited basis during construction. In May 2014, the Company and other members sold their interests in BROP. (See Note C[4])

On October 29, 2012, the Company’s facility at NYU was totally destroyed as a result of flooding from Hurricane Sandy. During 2014, the Company finalized arrangements with NYU regarding the restoration of the gamma knife center and the Company’s long term contract with NYU. The location of the restored facility, with the new Leksell PERFECTION gamma knife, is in the Tisch Hospital of NYU Langone Medical Center. The center reopened, and the first patient was treated on April, 29, 2014. (See Note D)