Summary of Significant Accounting Policies (Details)		12 Months Ended
		Dec. 31, 2015 USD ($) Customer shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 shares
Summary of Significant Accounting Policies [Abstract]
Equity ownership in entities included in consolidated financial statements, minimum		50.00%
Allowance for doubtful accounts receivable, pre-tax charge | $		$ 3,514,000
Inventory reserve | $		45,000,000	$ 45,200,000
Property, Plant and Equipment [Line Items]
Valuation allowance | $	[1]	440,000	353,000
Net deferred tax asset | $		$ 51,363,000	$ 51,475,000
Reconciliation of the shares used in calculating basic and dilutive net earnings per common share [Abstract]
Weighted average common shares outstanding - Basic (in shares)		22,811,862	22,899,516	22,974,690
Plus incremental shares from assumed conversions [Abstract]
Dilutive effect of restricted stock and performance shares (in shares)		330,000	335,000	287,000
Dilutive effect of stock options (in shares)		0	5,000	8,000
Weighted average common shares outstanding - Diluted (in shares)		23,142,394	23,239,925	23,270,067
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Minimum product warranty period		90 days
Concentration Risk [Line Items]
Number of largest individual customers | Customer		5
Concentration risk, percentage		68.00%	69.00%	66.00%
Foreign cash balance | $		$ 16,200,000	$ 10,700,000
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		25 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		33 years 6 months
Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		10 years
Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		25 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		7 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		12 years
Tools, Dies and Auxiliary Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		3 years
Tools, Dies and Auxiliary Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		8 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life		12 years
NAPA Auto Parts [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		19.00%
Benchmark percentage to consider customer as major customer		19.00%
Advance Auto Parts, Inc. [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		17.00%
Benchmark percentage to consider customer as major customer		17.00%
O' Reilly Automotive, Inc. [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		19.00%
Benchmark percentage to consider customer as major customer		19.00%
AutoZone, Inc [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		11.00%
Benchmark percentage to consider customer as major customer		11.00%
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)		0	4,000	8,000
Restricted and Performance Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)		307,000	276,000	203,000

[1] Current net deferred tax assets are $40.6 million and $36.6 million for 2015 and 2014, respectively. Non-current net deferred tax assets are $10.7 million and $14.9 million for 2015 and 2014, respectively. The tax valuation allowance was allocated to long term deferred tax assets in the amounts of $0.4 million in both 2015 and 2014. None of the valuation allowance was allocated to current deferred tax assets in 2015 and 2014.