Geographical Customer Concentration and Products Data (Details Textual) (USD $)	12 Months Ended
Dec. 31, 2012 Customer	Dec. 31, 2011 Customer	Dec. 31, 2010
Geographical Customer Concentration And Products Data (Textual) [Abstract]
Customers accounted for Consolidated sales	10.00%	10.00%	10.00%
Unsecured trade receivables from governmental agencies	$ 8,000	$ 26,000
Trade receivables from customers	$ 583,000	$ 334,000
Number of customers	6	4
Customers accounted for accounts receivable	27.00%	43.20%

Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations.

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

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-BRD

-Paragraph 35

-IssueDate 2006-05-01

-Chapter 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_ReceivablesFromCustomers
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant