Borrowings (Tables)

12 Months Ended

Dec. 31, 2012

Borrowings [Abstract]

Schedule of long-term debt [Table Text Block]

	December 31,  2012			December 31,  2011
Credit facility	$	299,709		$	326,050
Less current portion		(23,727	)		(36,700	)
Total long term borrowings	$	275,982		$	289,350

Schedule of Maturities of Long Term Debt

Year	Amount
2013	$	23,727
2014		34,469
2015		31,567
2016		36,429
2017		148,942
2018 and thereafter		24,575
	$	299,709