Debt (Details Textual) (USD $)	0 Months Ended	9 Months Ended
	Jul. 02, 2012	Sep. 30, 2012	Jan. 06, 2012	Dec. 31, 2011
Debt (Textual) [Abstract]
Revolving loans in a collective maximum principal amount			$ 100,000,000
Outstanding borrowings under revolving credit facility		2,000,000
Additional available borrowing capacity		59,300,000
Convertible notes, maturity date		Jul. 02, 2012
Outstanding convertible notes due on July 2, 2012	$ 91,900,000			$ 91,875,000
Shares of common stock issued to note-holders	1,061,745
Convertible debt instrument, coupon rate		6.00%