Goodwill	12 Months Ended
Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	Note 7 - Goodwill: Substantially all of our goodwill is related to our component products operations and was generated from CompX’s acquisitions of certain business units. There have been no changes in the carrying amount of our goodwill during the past three years. We have assigned goodwill related to the component products operations to two reporting units (as that term is defined in ASC Topic 350-20-20 Goodwill): one consisting of CompX’s security products operations and one consisting of CompX’s marine component operations. We test for goodwill impairment at the reporting unit level. In accordance with ASC 350-20-35, we test for goodwill impairment during the third quarter of each year or when circumstances arise that indicate an impairment might be present. In 2013 we adopted the guidance in ASU No. 2011-08 for testing goodwill for impairment by assessing qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. Based on our qualitative assessment, a quantitative assessment was not required for 2013, 2014 or 2015. In 2013, 2014 and 2015, goodwill for all applicable reporting units was tested for impairment only in the third quarter of each year in connection with our annual testing. No impairment was indicated as part of such annual review of goodwill. Prior to 2013, all of the goodwill related to CompX’s marine components operations (which aggregated $10.1 million) was impaired, and all of the goodwill related to our wholly-owned subsidiary EWI Re, Inc., (EWI) an insurance brokerage and risk management services company (which aggregated $6.4 million) was impaired. Our gross goodwill at December 31, 2015 was $43.7 million.

Note 7 - Goodwill:

Substantially all of our goodwill is related to our component products operations and was generated from CompX’s acquisitions of certain business units. There have been no changes in the carrying amount of our goodwill during the past three years.

We have assigned goodwill related to the component products operations to two reporting units (as that term is defined in ASC Topic 350-20-20 Goodwill): one consisting of CompX’s security products operations and one consisting of CompX’s marine component operations. We test for goodwill impairment at the reporting unit level. In accordance with ASC 350-20-35, we test for goodwill impairment during the third quarter of each year or when circumstances arise that indicate an impairment might be present. In 2013 we adopted the guidance in ASU No. 2011-08 for testing goodwill for impairment by assessing qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. Based on our qualitative assessment, a quantitative assessment was not required for 2013, 2014 or 2015.

In 2013, 2014 and 2015, goodwill for all applicable reporting units was tested for impairment only in the third quarter of each year in connection with our annual testing. No impairment was indicated as part of such annual review of goodwill. Prior to 2013, all of the goodwill related to CompX’s marine components operations (which aggregated $10.1 million) was impaired, and all of the goodwill related to our wholly-owned subsidiary EWI Re, Inc., (EWI) an insurance brokerage and risk management services company (which aggregated $6.4 million) was impaired. Our gross goodwill at December 31, 2015 was $43.7 million.