Net Capital Requirements (Details Textual) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 28, 2013
Net Capital Requirements (Textual) [Abstract]
Percentage of aggregate debit items arising from customer transactions to maintain minimum net capital requirements	2.00%
Minimum net capital requirements	$ 250

Minimum amount of net capital required to be maintained by entity's broker-dealer subsidiary to engage in securities transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Rule 15c3

-Number 240

-Section 1

-Paragraph 1

-Subparagraph i

-Article 15c3

-Subsection a

Name:	us-gaap_MinimumNetCapitalRequiredForBrokerDealerSubsidiary1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant