Property and Equipment

9 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Property and equipment are stated at cost less accumulated depreciation. Depreciation for Gamma Knife, IGRT, and other equipment is determined using the straight-line method over the estimated useful lives of the assets, which for medical and office equipment is generally 3 – 10 years, and after accounting for salvage value on the equipment where indicated. Salvage value is based on the estimated fair value of the equipment at the end of its useful life.

Depreciation for PBRT equipment is determined using the modified units of production method, which is a function of both time and usage of the equipment. This depreciation method allocates costs considering the projected volume of usage through the useful life of the PBRT unit, which has been estimated at 20 years. The estimated useful life of the PBRT unit is consistent with the estimated economic life of 20 years.

The following table summarizes property and equipment as of September 30, 2019 and December 31, 2018:


	September 30,		December 31,
	2019		2018

Medical equipment and facilities	$	90,672,000	$	94,031,000
Office equipment	578,000		589,000
Deposits and construction in progress	3,339,000		3,832,000
Deposits towards purchase of proton beam systems	2,250,000		2,250,000

	96,839,000		100,702,000
Accumulated depreciation	(53,836,000)		(54,008,000)

Net property and equipment	$	43,003,000	$	46,694,000

As of September 30, 2019, approximately $2,961,000 of the net property and equipment balance is outside of the United States. As of September 30, 2019, the Company has one idle Gamma Knife unit with a cumulative net book value of $729,000. There are currently no commitments to place into service or trade in this unit during 2019.