Summary of Significant Accounting Policies (Details)		12 Months Ended
		Dec. 31, 2016 USD ($) Customer shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 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 | $		$ 800,000	$ 3,514,000
Inventory reserve | $		47,900,000	45,000,000
Property, Plant and Equipment [Line Items]
Valuation allowance | $	[1]	505,000	440,000
Net deferred tax asset | $		$ 51,127,000	$ 51,363,000
Reconciliation of the shares used in calculating basic and dilutive net earnings per common share [Abstract]
Weighted average common shares outstanding - Basic (in shares) | shares		22,722,517	22,811,862	22,899,516
Plus incremental shares from assumed conversions [Abstract]
Dilutive effect of restricted stock and performance-based stock (in shares) | shares		360,000	330,000	335,000
Dilutive effect of stock options (in shares) | shares		0	0	5,000
Weighted average common shares outstanding - Diluted (in shares) | shares		23,082,578	23,142,394	23,239,925
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		70.00%	68.00%	69.00%
Foreign cash balance | $		$ 16,500,000	$ 16,200,000
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		18.00%
Benchmark percentage to consider customer as major customer		18.00%
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		20.00%
Benchmark percentage to consider customer as major customer		20.00%
AutoZone, Inc [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		11.00%
Benchmark percentage to consider customer as major customer		11.00%
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) | shares		304,000	307,000	276,000

[1] Current net deferred tax assets are $40.6 million in both 2016 and 2015. Non-current net deferred tax assets are $10.5 million and $10.7 million for 2016 and 2015, respectively. The tax valuation allowance was allocated to long term deferred tax assets in the amounts of $0.5 million and $0.4 million for 2016 and 2015, respectively. None of the valuation allowance was allocated to current deferred tax assets in 2016 and 2015.