DISCONTINUED OPERATIONS (Details) (USD $)	3 Months Ended	9 Months Ended				3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Jul. 02, 2012	Jul. 02, 2012 Numark Industries, L.P. [Member]	Jul. 02, 2012 Corel Corporation [Member]	Sep. 30, 2012 Scenario, Actual [Member]	Sep. 30, 2012 Scenario, Actual [Member]	Jun. 30, 2012 Consumer Business Divestiture [Member]
Assets of Disposal Group, Including Discontinued Operation			$ 25,000,000
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds			14,800,000	11,800,000	3,000,000
Proceeds from divestiture of consumer business		0					11,440,000
Current Assets Held-for-Sale, Proceeds from Sale				10,900,000	2,400,000
Significant Acquisitions and Disposals, Gain (Loss) on Sale or Disposal, Net of Tax	0	0				37,972,000	37,972,000
Significant Acquisitions and Disposals, Costs to Sell								$ (1,900,000)