Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2015

Asset Retirement Obligations [Abstract]

When the NYU agreement was finalized, the Company estimated the cost to remove the gamma knife at the end of the agreement to be approximately $620,000. The estimated present value of this liability is $466,000 at December 31, 2015 and $431,000 at December 31, 2014.

	2015		2014

Asset retirement obligations, start of year	$	431,000	$	-

Asset retirement obligation for new gamma knife				431,000

Accretion of liability		35,000		-

Asset retirement of obligations, end of the year	$	466,000	$	431,000