Acquisitions and Divestitures - Narrative (Details) - USD ($)		3 Months Ended			6 Months Ended		12 Months Ended
	Jan. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Oct. 15, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on sale of discontinued businesses		$ 0	$ 1,200,000		$ 0	$ 1,700,000
Loss from discontinued operations		0	(1,600,000)		0	$ (2,300,000)
Discontinued Operations | XtremeMac Consumer Electronics Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration from sale of business	$ 3,100,000
Proceeds from sale of businesses	300,000
Note receivable from sale of business	300,000
Consideration to be received from sale of business based on selling acquired inventory	$ 2,500,000
Loss on sale of discontinued businesses				$ 500,000
Loss from discontinued operations		0			0
Discontinued Operations | Memorex Consumer Electronics Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration from sale of business									$ 9,300,000
Proceeds from sale of businesses					700,000		$ 1,900,000	$ 900,000
Loss from discontinued operations		0			0
Estimated fair value of receivable		$ 5,100,000			$ 5,100,000
Notes receivable | Discontinued Operations | XtremeMac Consumer Electronics Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Decrease in expected contingent consideration receivable			1,200,000
Loss from discontinued operations | Discontinued Operations | XtremeMac Consumer Electronics Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss as a component of discontinued operations related to the decrease in contingent consideration receivable			$ 1,200,000