Investment in Sublease (Details)	12 Months Ended
	Dec. 31, 2021 Installment	Dec. 31, 2018 USD ($)	Oct. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Apr. 30, 2016 USD ($)
Capital Leases of Lessee [Abstract]
Sales price				$ 2,447,000
Gamma Knife Cobalt Reload [Member]
Capital Leases of Lessee [Abstract]
Monthly lease payment			$ 30,000
ICON Imaging Technology [Member]
Capital Leases of Lessee [Abstract]
Monthly lease payment						$ 20,000
NYU [Member]
Capital Leases of Lessee [Abstract]
Purchase price of gamma knife equipment					$ 2,400,000
Number of monthly installments | Installment	41
Monthly lease payment					50,000
Final lease payment amount					$ 350,000
NYU [Member] | Gamma Knife Cobalt Reload [Member]
Capital Leases of Lessee [Abstract]
Monthly lease payment		$ 50,000
Cobalt reload cost		1,503,000
NYU [Member] | ICON Imaging Technology [Member]
Capital Leases of Lessee [Abstract]
Monthly lease payment		30,000					$ 30,000
Final lease payment amount		350,000
Total final lease payment		$ 380,000