Stock Compensation Plans (Details 3) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Options, Outstanding at beginning of year	984,649	929,024	842,600
Options, Issued during year	237,500	237,500	329,000
Options, Canceled or expired	(25,024)	(125,625)	(167,576)
Options, Exercised during year	(504,250)	(56,250)	(75,000)
Options, Outstanding at end of year	692,875	984,649	929,024
Options, Exercisable at end of year	192,625	69,399	87,524
Weighted-average fair value of options granted during the year	$ 3.12	$ 4.03	$ 1.80
Weighted Average Exercise Price, Issued during year		$ 6.07	$ 2.56
Maximum [Member]
Weighted Average Exercise Price, Outstanding at beginning of year	$ 9.35	$ 11.26	$ 13.40
Weighted Average Exercise Price, Issued during year	$ 5.66
Weighted Average Exercise Price, Exercised during year	$ 2.56	$ 2.56	$ 0.89
Weighted Average Exercise Price, Outstanding at end of year	$ 6.07	$ 9.35	$ 11.26
Minimum [Member]
Weighted Average Exercise Price, Outstanding at beginning of year	$ 0.64	$ 0.64	$ 0.64
Weighted Average Exercise Price, Issued during year	$ 5.28
Weighted Average Exercise Price, Exercised during year	$ 0.64	$ 0.64	$ 0.64
Weighted Average Exercise Price, Outstanding at end of year	$ 0.64	$ 0.64	$ 0.64