Profit Sharing Plan (Details Textual) (USD $)	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	15.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount	$ 79,700	$ 72,800
Maximum [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent		4.00%

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration