Valuation and Qualifying Accounts Allowance for Returns and Doubtful Accounts (Details Narrative) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Valuation And Qualifying Accounts Allowance For Returns And Doubtful Accounts Details Narrative
Cash collections of previously reserved accounts receivable included within revenues (less than)	$ 0.1	$ 0.7	$ 0.7

Amount of recoveries of receivables doubtful of collection that were previously charged off.

No definition available.

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration