Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2017
Medical Equipment | Minimum
Medical Equipment and Property and Office Equipment
Estimated useful life	4 years
Medical Equipment | Maximum
Medical Equipment and Property and Office Equipment
Estimated useful life	7 years
Office Equipment | Minimum
Medical Equipment and Property and Office Equipment
Estimated useful life	3 years
Office Equipment | Maximum
Medical Equipment and Property and Office Equipment
Estimated useful life	10 years