Options outstanding and options exercisable (Details){Stockholder Equity} - Jun. 28, 2015 - shares	Total
Options Outstanding at June 28, 2015
Total Options outstanding and options exercisable	0
Total Options outstanding and options exercisable {1}	871,798
Total Options outstanding and options exercisable	0
Range of Exercise Prices 1.55 - 1.95	81,306
Range of Exercise Prices 1.96 - 2.35	90,000
Range of Exercise Prices 2.36 - 2.75	397,000
Range of Exercise Prices 2.76 - 3.30	55,000
Range of Exercise Prices 3.31 - 3.81	41,528
Range of Exercise Prices 5.51 - 5.74	8,664
Range of Exercise Prices 5.95 - 6.25	153,300
Range of Exercise Prices 6.26 - 8.16	45,000
Total Options outstanding and options exercisable {1}	871,798
Options Outstanding Weighted-Average Remaining Contractual Life (Years)
Total Options outstanding and options exercisable {1}	6.9
Range of Exercise Prices 1.55 - 1.95	4.1
Range of Exercise Prices 1.96 - 2.35	3
Range of Exercise Prices 2.36 - 2.75	7.2
Range of Exercise Prices 2.76 - 3.30	7
Range of Exercise Prices 3.31 - 3.81	7.5
Range of Exercise Prices 5.51 - 5.74	8
Range of Exercise Prices 5.95 - 6.25	8.9
Range of Exercise Prices 6.26 - 8.16	8.9
Total Options outstanding and options exercisable {1}	6.9
Options Outstanding Weighted-Average Exercise Price
Total Options outstanding and options exercisable {1}	3.51
Range of Exercise Prices 1.55 - 1.95	1.9
Range of Exercise Prices 1.96 - 2.35	2.32
Range of Exercise Prices 2.36 - 2.75	2.57
Range of Exercise Prices 2.76 - 3.30	3.11
Range of Exercise Prices 3.31 - 3.81	3.81
Range of Exercise Prices 5.51 - 5.74	5.74
Range of Exercise Prices 5.95 - 6.25	6.06
Range of Exercise Prices 6.26 - 8.16	8.09
Total Options outstanding and options exercisable {1}	3.51
Options Exercisable at June 28, 2015
Total Options outstanding and options exercisable {1}	406,378
Range of Exercise Prices 1.55 - 1.95	81,306
Range of Exercise Prices 1.96 - 2.35	90,000
Range of Exercise Prices 2.36 - 2.75	145,000
Range of Exercise Prices 2.76 - 3.30	55,000
Range of Exercise Prices 3.31 - 3.81	12,458
Range of Exercise Prices 5.51 - 5.74	8,664
Range of Exercise Prices 5.95 - 6.25	12,450
Range of Exercise Prices 6.26 - 8.16	1,500
Total Options outstanding and options exercisable {1}	406,378
Options Exercisable Weighted-Average Exercise Price
Total Options outstanding and options exercisable {1}	2.63
Range of Exercise Prices 1.55 - 1.95	1.9
Range of Exercise Prices 1.96 - 2.35	2.32
Range of Exercise Prices 2.36 - 2.75	2.6
Range of Exercise Prices 2.76 - 3.30	3.11
Range of Exercise Prices 3.31 - 3.81	1.52
Range of Exercise Prices 5.51 - 5.74	5.74
Range of Exercise Prices 5.95 - 6.25	6.02
Range of Exercise Prices 6.26 - 8.16	8.16
Total Options outstanding and options exercisable {1}	2.63