Annual report pursuant to Section 13 and 15(d)

Note 15 - Contingent Consideration (Detail)

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Note 15 - Contingent Consideration (Detail) (USD $)
12 Months Ended
Dec. 30, 2012
Aug. 31, 2011
Business Acquisition, Purchase Price Allocation, Current Assets, Cash and Cash Equivalents   $ 967,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability 650,000  
Maximum [Member] | ZF Array Technologies [Member]
   
Business Acquisition, Contingent Consideration, Potential Cash Payment   2,400,000
ZF Array Technologies [Member]
   
Business Acquisition, Cost of Acquired Entity, Cash Paid   4,000,000
Business Acquisition, Purchase Price Allocation, Current Assets, Cash and Cash Equivalents   $ 967