Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Summary of Significant Accounting Policies (Tables) [Line Items]

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

In thousands	2021		2020
Balance at beginning of year	$	660	$	743
Provisions		64		123
Write-offs		(301)		(206)
Balance at end of year	$	423	$	660

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

	Years
Indoor rental equipment	10
Outdoor rental equipment	15
Machinery, fixtures and equipment	5 – 15
Leaseholds and improvements	7