FAIR VALUE MEASUREMENTS (Details) (Recurring basis, USD $) In Thousands, unless otherwise specified	Mar. 28, 2015	Sep. 27, 2014
Total Carrying Value
Fair Value Measurements
Short-term investments in mutual funds	$ 1,129	$ 1,016
Forward foreign exchange contracts		8
Contingent consideration liability		(1,415)
Total Carrying Value | Convertible promissory note
Fair Value Measurements
Investment in notes receivable	2,000	1,500
Total Carrying Value | Conversion feature derivative
Fair Value Measurements
Embedded derivative	629	468
Quoted Prices in Active Markets (Level 1)
Fair Value Measurements
Short-term investments in mutual funds	1,129	1,016
Significant Other Observable Inputs (Level 2)
Fair Value Measurements
Forward foreign exchange contracts		8
Significant Unobservable Inputs (Level 3)
Fair Value Measurements
Contingent consideration liability		(1,415)
Significant Unobservable Inputs (Level 3) | Convertible promissory note
Fair Value Measurements
Investment in notes receivable	2,000	1,500
Significant Unobservable Inputs (Level 3) | Conversion feature derivative
Fair Value Measurements
Embedded derivative	$ 629	$ 468