Credit Facility (Details) (USD $)				0 Months Ended		3 Months Ended	0 Months Ended
	Sep. 28, 2012	Jun. 29, 2012	May 01, 2012 Letter of credit	Sep. 28, 2012 Line of credit Senior secured credit facility	Dec. 05, 2011 Line of credit Senior secured credit facility	Sep. 28, 2012 Line of credit Senior secured credit facility	Dec. 05, 2011 Line of credit Senior secured credit facility Revolving credit facility	May 01, 2012 Line of credit Senior secured credit facility Revolving credit facility	Dec. 05, 2011 Line of credit Senior secured credit facility Revolving credit facility Percent per annum in excess of LIBOR	Dec. 05, 2011 Line of credit Senior secured credit facility Revolving credit facility Percent per annum in excess of base rate	Dec. 05, 2011 Line of credit Senior secured credit facility Revolving credit facility Base rate, percent in excess of Federal Funds rate	Dec. 05, 2011 Line of credit Senior secured credit facility Revolving credit facility Base rate, percent in excess of LIBOR	Sep. 28, 2012 Line of credit Senior secured credit facility Letter of credit	Dec. 05, 2011 Line of credit Senior secured credit facility Letter of credit
Credit facility:
Term of credit facility					5 years
Maximum borrowing capacity			$ 10,000,000				$ 35,000,000	$ 40,000,000						$ 10,000,000
Duration of initial credit facility term in which the Company can increase maximum borrwoing capacity							18 months
Increase in maximum borrowing capacity								5,000,000
Basis spread on variable rate									2.50%	1.75%	0.50%	1.00%
Unused line fees percentage							0.40%
Repayments of debt						5,000,000
Amount outstanding	10,300,000	15,200,000		10,300,000		10,300,000							2,000,000
Accrued interest				400,000
Current interest rate				2.70%		2.70%
Remaining borrowing capacity				$ 27,700,000		$ 27,700,000							$ 2,000,000