Long-Term Debt (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Long-Term Debt (Textual) [Abstract]
Additional committed borrowing capacity	$ 24.3
Long-Term Debt (Additional Textual) [Abstract]
Asset Based Senior Secured Revolving Credit	120.0
Amortization on Real Estate Component of Borrowing base	12 years 6 months
Credit facility maturity date	Dec. 21, 2017
FCCR testing threshold	10.4
Revolving Credit borrowing	59.1
Weighted average interest rate	2.87%
Letters of credit outstanding	4.3
Capital lease and other obligations	0.7
FCCR excess availability	24.3
Long term debt, Fair value	59.1	51.6
Maximum [Member]
Long-Term Debt (Textual) [Abstract]
Additional committed borrowing capacity	15.0
Unused commitment fees	0.375%
Maximum [Member] | Fixed Charge Coverage Ratio Threshold [Member]
Long-Term Debt (Textual) [Abstract]
Line of credit facility current borrowing capacity	15.0
Minimum [Member]
Long-Term Debt (Textual) [Abstract]
FCCR	1.25%
Fixed charge coverage ratio	10.0
Unused commitment fees	0.30%
Minimum [Member] | Fixed Charge Coverage Ratio Threshold [Member]
Long-Term Debt (Textual) [Abstract]
Line of credit facility current borrowing capacity	$ 10.0