Acquisition Of Qumu, Inc. (Preliminary Purchase Accounting Allocation) (Details) (Qumu, Inc. [Member], USD $)	Oct. 10, 2011
Qumu, Inc. [Member]
Business Acquisition [Line Items]
Aggregate purchase price	$ 51,275,000
Less: discount applied to Rimage stock for trade restrictions	(1,955,000)
Net transaction consideration	49,320,000
Current assets	5,213,000
Property and equipment	390,000
Intangible assets	18,900,000
Goodwill	22,218,000
Net deferred tax assets	7,229,000
Current liabilities	(4,630,000)
Total net assets acquired	$ 49,320,000