Summary of Significant Accounting Policies (Details) - Estimated useful lives	12 Months Ended
	Dec. 31, 2017
Indoor Rental Equipment [Member]
Summary of Significant Accounting Policies (Details) - Estimated useful lives [Line Items]
Estimated Useful Lives	10 years
Outdoor Rental Equipment [Member]
Summary of Significant Accounting Policies (Details) - Estimated useful lives [Line Items]
Estimated Useful Lives	15 years
Machinery Fixture And Equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Details) - Estimated useful lives [Line Items]
Estimated Useful Lives	5 years
Machinery Fixture And Equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Details) - Estimated useful lives [Line Items]
Estimated Useful Lives	15 years
Leaseholds and Leasehold Improvements [Member]
Summary of Significant Accounting Policies (Details) - Estimated useful lives [Line Items]
Estimated Useful Lives	7 years