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SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 01, 2017
Apr. 02, 2016
Dec. 31, 2016
Segment Reporting Information [Line Items]      
Noncurrent deferred income tax liabilities $ 599    
Effective income tax rate 35.00% 36.00%  
Accounting Standards Update 2016-09 [Member]      
Segment Reporting Information [Line Items]      
Effective income tax rate (1.00%)    
Scenario Previously Reported [Member]      
Segment Reporting Information [Line Items]      
Current deferred income tax assets     $ 8,859
Noncurrent deferred income tax liabilities     $ 8,526
Sales [Member] | Unaffiliated Castings [Member]      
Segment Reporting Information [Line Items]      
Percentage of sales 1.00%    
Sales [Member] | Firearms [Member]      
Segment Reporting Information [Line Items]      
Percentage of sales 99.00%    
Sales [Member] | Non-US [Member]      
Segment Reporting Information [Line Items]      
Percentage of sales 5.00%