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Capital Lease Financing	6 Months Ended
Capital Lease Financing	Jun. 30, 2019
Debt Disclosure [Abstract]
Capital Lease Financing	Capital Lease Financing Capital lease financing consists of ten leases with three financing companies, collateralized by Gamma Knife and PBRT equipment, the individual customer contracts, and related accounts receivable at June 30, 2019. As of June 30, 2019, obligations under capital leases on the Condensed Consolidated Balance Sheets were $12,605,000. See disclosure of future payments below under the heading “Commitments”.