Employee Benefit Plans (Details 1) (USD $)	12 Months Ended
	Dec. 28, 2012
Summarized information with respect to options outstanding and exercisable
Shares Outstanding	1,514,113
Weighted Average Remaining, Average Life Years (Years)	4 years 7 days
Weighted Average Exercise Price	$ 6.98
Shares Exercisable	1,463,797
Weighted Average Exercise Price	$ 7.14
Stock Options One [Member]
Summarized information with respect to options outstanding and exercisable
Range of Exercise Price, Minimum	$ 1.00
Range of Exercise Price, Maximum	$ 1.17
Shares Outstanding	384,210
Weighted Average Remaining, Average Life Years (Years)	5 years 9 months 25 days
Weighted Average Exercise Price	$ 1.12
Shares Exercisable	353,624
Weighted Average Exercise Price	$ 1.12
Stock Options Two [Member]
Summarized information with respect to options outstanding and exercisable
Range of Exercise Price, Minimum	$ 2.93
Range of Exercise Price, Maximum	$ 6.43
Shares Outstanding	126,710
Weighted Average Remaining, Average Life Years (Years)	5 years 9 months 28 days
Weighted Average Exercise Price	$ 4.34
Shares Exercisable	108,126
Weighted Average Exercise Price	$ 4.41
Stock Options Three [Member]
Summarized information with respect to options outstanding and exercisable
Range of Exercise Price, Minimum	$ 6.55
Range of Exercise Price, Maximum	$ 6.55
Shares Outstanding	388,323
Weighted Average Remaining, Average Life Years (Years)	2 years 4 months 12 days
Weighted Average Exercise Price	$ 6.55
Shares Exercisable	388,323
Weighted Average Exercise Price	$ 6.55
Stock Options Four [Member]
Summarized information with respect to options outstanding and exercisable
Range of Exercise Price, Minimum	$ 6.61
Range of Exercise Price, Maximum	$ 12.38
Shares Outstanding	319,720
Weighted Average Remaining, Average Life Years (Years)	2 years 10 months 24 days
Weighted Average Exercise Price	$ 8.47
Shares Exercisable	318,574
Weighted Average Exercise Price	$ 8.47
Stock Options Five [Member]
Summarized information with respect to options outstanding and exercisable
Range of Exercise Price, Minimum	$ 12.99
Range of Exercise Price, Maximum	$ 14.90
Shares Outstanding	295,150
Weighted Average Remaining, Average Life Years (Years)	4 years 3 months 18 days
Weighted Average Exercise Price	$ 14.68
Shares Exercisable	295,150
Weighted Average Exercise Price	$ 14.68