Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014 Segment		Mar. 30, 2013 Segment
Business Segment Information [Abstract]
Number of reportable segments	2		1
Revenues by Product line [Abstract]
Revenues	$ 93,367		$ 76,204
Income from Continuing Operations Before Provision for Income Taxes [Abstract]
Total operating income	7,621		7,372
Interest expense, net	(84)		(56)
Income from Continuing Operations Before Provision for Income Taxes	7,537		7,316
Capital Expenditures [Abstract]
Capital expenditures	539		1,178
Papermaking Systems
Revenues by Product line [Abstract]
Revenues	78,184		72,397
Income from Continuing Operations Before Provision for Income Taxes [Abstract]
Total operating income	9,410		9,944
Capital Expenditures [Abstract]
Capital expenditures	517		1,172
Fiber based Products [Member]
Revenues by Product line [Abstract]
Revenues	3,910		3,807
Wood Processing Systems Segment [Member]
Revenues by Product line [Abstract]
Revenues	11,273		0
Income from Continuing Operations Before Provision for Income Taxes [Abstract]
Total operating income	1,354		0
Corporate and Fiber-based Products [Member]
Income from Continuing Operations Before Provision for Income Taxes [Abstract]
Total operating income	(3,143)	[1]	(2,572)	[1]
Other Capital Expenditures [Member]
Capital Expenditures [Abstract]
Capital expenditures	$ 22		$ 6

[1] Corporate primarily includes general and administrative expenses.