Stockholders' Equity (Details 1) (USD $)	12 Months Ended
	Dec. 28, 2013
Range One
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 0.90
Range of Exercise Prices, Upper Range Limit	$ 2.34
Options Outstanding, Number of Shares	124,474
Options Outstanding, Weighted Average Remaining Contractual Life (years)	2 years
Options Outstanding, Weighted Average Exercise Price	$ 1.44
Options Vested and Exercisable, Number of Shares Exercisable	124,474
Options Vested and Exercisable, Weighted Average Exercise Price	$ 1.44
Range Two
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 2.35
Range of Exercise Prices, Upper Range Limit	$ 2.78
Options Outstanding, Number of Shares	117,142
Options Outstanding, Weighted Average Remaining Contractual Life (years)	10 months 24 days
Options Outstanding, Weighted Average Exercise Price	$ 2.49
Options Vested and Exercisable, Number of Shares Exercisable	117,142
Options Vested and Exercisable, Weighted Average Exercise Price	$ 2.49
Range Three
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 2.93
Range of Exercise Prices, Upper Range Limit	$ 3.60
Options Outstanding, Number of Shares	127,694
Options Outstanding, Weighted Average Remaining Contractual Life (years)	3 years 7 months 17 days
Options Outstanding, Weighted Average Exercise Price	$ 3.42
Options Vested and Exercisable, Number of Shares Exercisable	88,432
Options Vested and Exercisable, Weighted Average Exercise Price	$ 3.36
Range Four
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 3.72
Range of Exercise Prices, Upper Range Limit	$ 3.75
Options Outstanding, Number of Shares	65,833
Options Outstanding, Weighted Average Remaining Contractual Life (years)	4 years 9 months 11 days
Options Outstanding, Weighted Average Exercise Price	$ 3.72
Options Vested and Exercisable, Number of Shares Exercisable	39,000
Options Vested and Exercisable, Weighted Average Exercise Price	$ 3.72
Range Five
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 3.86
Range of Exercise Prices, Upper Range Limit	$ 3.86
Options Outstanding, Number of Shares	171,875
Options Outstanding, Weighted Average Remaining Contractual Life (years)	5 years 11 months 16 days
Options Outstanding, Weighted Average Exercise Price	$ 3.86
Options Vested and Exercisable, Number of Shares Exercisable	26,573
Options Vested and Exercisable, Weighted Average Exercise Price	$ 3.86
Range Six
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 3.89
Range of Exercise Prices, Upper Range Limit	$ 4.11
Options Outstanding, Number of Shares	111,325
Options Outstanding, Weighted Average Remaining Contractual Life (years)	4 years 7 months 6 days
Options Outstanding, Weighted Average Exercise Price	$ 3.98
Options Vested and Exercisable, Number of Shares Exercisable	62,498
Options Vested and Exercisable, Weighted Average Exercise Price	$ 3.97
Range Seven
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 4.12
Range of Exercise Prices, Upper Range Limit	$ 4.74
Options Outstanding, Number of Shares	126,775
Options Outstanding, Weighted Average Remaining Contractual Life (years)	4 years 18 days
Options Outstanding, Weighted Average Exercise Price	$ 4.46
Options Vested and Exercisable, Number of Shares Exercisable	78,546
Options Vested and Exercisable, Weighted Average Exercise Price	$ 4.32
Range Eight
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 4.86
Range of Exercise Prices, Upper Range Limit	$ 5.92
Options Outstanding, Number of Shares	173,091
Options Outstanding, Weighted Average Remaining Contractual Life (years)	3 years 6 months 7 days
Options Outstanding, Weighted Average Exercise Price	$ 5.63
Options Vested and Exercisable, Number of Shares Exercisable	104,367
Options Vested and Exercisable, Weighted Average Exercise Price	$ 5.45
Range Nine
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 6.00
Range of Exercise Prices, Upper Range Limit	$ 9.06
Options Outstanding, Number of Shares	81,633
Options Outstanding, Weighted Average Remaining Contractual Life (years)	2 years 2 months 19 days
Options Outstanding, Weighted Average Exercise Price	$ 6.74
Options Vested and Exercisable, Number of Shares Exercisable	60,492
Options Vested and Exercisable, Weighted Average Exercise Price	$ 6.90
Range Ten
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 10.19
Range of Exercise Prices, Upper Range Limit	$ 10.19
Options Outstanding, Number of Shares	3,000
Options Outstanding, Weighted Average Remaining Contractual Life (years)	6 years 11 months 5 days
Options Outstanding, Weighted Average Exercise Price	$ 10.19
Options Vested and Exercisable, Number of Shares Exercisable
Options Vested and Exercisable, Weighted Average Exercise Price	$ 0.00
Range Eleven
Stock options outstanding and exercisable
Range of Exercise Prices, Lower Range Limit	$ 0.90
Range of Exercise Prices, Upper Range Limit	$ 10.19
Options Outstanding, Number of Shares	1,102,842
Options Outstanding, Weighted Average Remaining Contractual Life (years)	3 years 7 months 13 days
Options Outstanding, Weighted Average Exercise Price	$ 3.97
Options Vested and Exercisable, Number of Shares Exercisable	701,524
Options Vested and Exercisable, Weighted Average Exercise Price	$ 3.69