(11) Segment Reporting (Details Narrative) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Segment Reporting Details Narrative
Percentage of accounts receivable from one major customer	26.00%		20.00%
Sales return reserve (benefit) expense	$ (0.1)	$ (0.6)

Amount of increase (decrease) in the allowance for doubtful accounts.

No definition available.

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration