(16) Valuation and Qualifying Accounts Allowance for Returns and Doubtful Accounts (Details Narrative) (USD $)	12 Months Ended
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	$ 700,000	$ 700,000

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