Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

In thousands	2016		2015
Balance at beginning of year	$	559	$	168
Provisions		305		437
Deductions		(825)		(46)
Balance at end of year	$	39	$	559

Schedule Of Property Plant And Equipment Estimated Useful Life [Table Text Block]

	Years
Indoor rental equipment	5 - 10
Outdoor rental equipment	15
Buildings and improvements	10 – 39
Machinery, fixtures and equipment	3 – 15
Leaseholds and improvements	3