(17) Quarterly Financial Data (Unaudited) (Details Narrative) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data Details Narrative
Cash collections of previously reserved accounts receivable balances	$ 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