Supplemental Cash Flow Information (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Line Items]
Credit Facility maximum borrowing capacity	$ 120,000,000
Term Loan [Member]
Supplemental Cash Flow Elements [Line Items]
Credit Facility maximum borrowing capacity	30,000,000
Debt Instrument, Increase (Decrease), Net, Total	27,750,000
Revolving Credit Facility [Member]
Supplemental Cash Flow Elements [Line Items]
Credit Facility maximum borrowing capacity	90,000,000
Debt Instrument, Increase (Decrease), Net, Total	$ 27,750,000