Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred income tax assets:
Inventory basis difference	$ 2,241	$ 1,051
Accounts receivable reserve	529	394
Depreciation	110	0
Stock based compensation	968	1,284
Pension liability	2,481	3,018
Employee benefit accrual	2,038	1,448
Product liability and warranty reserves	1,517	1,480
Expenses not currently deductible for tax purposes	60	410
Foreign net operating loss	2,726	1,379
State net operating loss	49	10
Other	194	0
Total deferred income tax assets	12,913	10,474
Less: Valuation allowance	(1,651)	(1,064)
Net deferred income tax assets	11,262	9,410
Deferred income tax liabilities:
Inventory basis differences	(310)	0
Depreciation	(4,624)	(2,786)
Intangible assets	(7,934)	(2,144)
Deferred revenue	0	38
Expenses not currently deductible for tax purposes	(642)	(356)
Total deferred income tax liabilities	(13,510)	(5,248)
Net deferred income tax liabilities and assets	$ (2,248)
Net deferred income tax liabilities and assets		$ 4,162