Income Taxes (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 1,133,000	$ 2,162,000	$ 6,751,000	$ 6,719,000
Effective income tax rate			8.98%	10.35%
Operating loss carryforwards, domestic	50,800,000		50,800,000
Unrecognized Tax Benefits	9,330,000		9,330,000		5,925,000
Unrecognized tax benefits, period increase (decrease)			3,405,000
Unrecognized tax benefits, income tax penalties and interest expense			$ 833,000
India [Member]
Operating Loss Carryforwards [Line Items]
Foreign tax holiday (percentage)			50.00%
Foreign statutory income tax rate			33.99%
Foreign income tax holiday, term			5 years
Singapore [Member]
Operating Loss Carryforwards [Line Items]
Foreign statutory income tax rate			17.00%
Foreign effective income tax rate			10.00%