Share Based Compensation (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Dec. 29, 2012
Share Based Compensation
Share based compensation expense	$ 100,000	$ 200,000
Tax benefit on share based compensation expense	(25,000)	(13,000)
Stock Options
Share Based Compensation
Share based compensation expense	53,000
Options
Outstanding at the beginning of the period (in shares)	335,650
Granted (in shares)	8,800
Forfeited/Cancelled (in shares)	(2,400)
Outstanding at the end of the period (in shares)	342,050		335,650
Vested and expected to vest (in shares)	326,678
Exercisable (in shares)	250,359
Weighted Average Exercise Price Per Share
Outstanding at the beginning of the period (in dollars per share)	$ 5.31
Granted (in dollars per share)	$ 3.24
Forfeited/Cancelled (in dollars per share)	$ 10.00
Outstanding at the end of the period (in dollars per share)	$ 5.23		$ 5.31
Vested and expected to vest (in dollars per share)	$ 5.26
Exercisable (in dollars per share)	$ 5.48
Weighted Average Remaining Contractual Term
Outstanding	7 years 1 month 17 days		7 years 3 months 4 days
Vested and expected to vest	7 years 14 days
Exercisable	6 years 6 months 11 days
Aggregate Intrinsic Value
Outstanding (in dollars)	81,896		34,124
Vested and expected to vest (in dollars)	79,961
Exercisable (in dollars)	69,065
Additional disclosure
Total fair value of the awards vested	121,000
Exercised (in shares)	0	13,250
Total intrinsic value of awards exercised	0	30,000
Income tax benefit from stock option exercises	0	0
Unrecognized compensation expense related to unvested stock options	100,000
Additional disclosure
Weighted-average period for recognizing unrecognized share based compensation expense related to unvested stock	1 year 4 months 24 days
Stock Awards
Share Based Compensation
Share based compensation expense	70,000
Shares
Non-vested at the beginning of the period (in shares)	98,753
Granted (in shares)	1,200
Vested (in shares)	(30,261)
Non-vested at the end of the period (in shares)	69,692
Weighted Average Grant Date Fair Value
Non-vested at the beginning of the period (in dollars per share)	$ 4.78
Granted (in dollars per share)	$ 3.24
Vested (in dollars per share)	$ (4.79)
Non-vested at the beginning of the period (in dollars per share)	$ 4.75
Additional disclosure
Total fair value of the awards vested	145,000
Unrecognized compensation expense related to unvested stock awards	$ 100,000
Weighted-average period for recognizing unrecognized share based compensation expense related to unvested stock	1 year 2 months 12 days