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The following table provides information on options outstanding and options exercisable (Details) (USD $)
Jun. 24, 2012
Shares Outstanding at June 24, 2012 (Options Outstanding)  
Range of Exercise Prices 1.55 - 1.95 158,506
Range of Exercise Prices1.96 - 2.35 145,000
Range of Exercise Prices 2.36 - 2.75 52,000
Range of Exercise Prices 2.76 - 3.30 56,000
Range of Exercise Prices 5.51 75,000
Total Shares Outstanding 486,506
Weighted-Average Remaining Contractual Life (Years) (Options Outstanding)  
Range of Exercise Price 1.55 - 1.95 7.28
Range of Exercise Price 1.96 - 2.35 6.08
Range of Exercise Price 2.36 - 2.75 9.00
Range of Exercise Price 2.76 - 3.30 6.49
Range of Exercise Price 5.51 9.36
Options Outstanding Contractual Life (Years) 7.34
Weighted-Average Exercise Price (Options Outstanding)  
Range of Exercise Prices $1.55 - $1.95 $ 1.88
Range of Exercise Prices $1.96 - $2.35 $ 2.29
Range of Exercise Prices $2.36 - $2.75 $ 2.71
Range of Exercise Prices $2.76 - $3.30 $ 3.17
Range of Exercise Prices $5.51 $ 5.51
Options Outstanding Weighted Average Exercise Price $ 2.80
Shares Exercisable at June 24, 2012 (Options Exercisable)  
Range of Exercise Prices 1.55 - 1.95: 140,528
Range of Exercise Prices1.96 - 2.35: 139,000
Range of Exercise Prices 2.76 - 3.30: 40,000
Total Shares Exercisable 319,528
Weighted-Average Exercise Price, (Options Exercisable)  
Range of Exercise Price $1.55 - $1.95 $ 1.89
Range of Exercise Price $1.96 - $2.35 $ 2.30
Range of Exercise Price $2.76 - $3.30 $ 3.17
Options Exercisable Weighted Average Exercise Price $ 2.23