Employee Benefit Plan (Details Textual) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Employee Benefit Plan (Textual) [Abstract]
Profit sharing and deferred compensation plan	$ 346,000	$ 440,000

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