401(k) Profit Sharing Plan (Details Textual) (USD $)	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
401(k) Profit Sharing Plan (Textual) [Abstract]
Discretionary cash bonus	$ 0	$ 0

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration