Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Canada
Income Taxes
Foreign subsidiary earnings permanently reinvested to satisfy current working capital requirements	$ 1,600
Tax that may be payable on distribution of foreign subsidiary earnings to the United States	612
Puerto Rico
Income Taxes
Foreign subsidiary earnings permanently reinvested to satisfy current working capital requirements	3,852
Tax that may be payable on distribution of foreign subsidiary earnings to the United States	$ 1,599