Summary of Significant Accounting Policies (Details) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Summary of Significant Accounting Policies (Textual) [Abstract]
Cash and cash equivalents maturity period, maximum	three months or less
Impairments recorded	$ 0
Valuation allowance	0
Vesting period	4 years
Accrued liability	337,000	79,000
Purchase of treasury stock	4,667,000
Westwood International Advisors Inc
Summary of Significant Accounting Policies (Textual) [Abstract]
Vesting period	3 years
Purchase of treasury stock, shares	20,251
Purchase of treasury stock	$ 878,000