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ACQUISITION (Details Narrative) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 15, 2015 | May 27, 2017 | Feb. 25, 2017 | Nov. 26, 2016 | Aug. 27, 2016 | May 28, 2016 | Feb. 27, 2016 | Nov. 28, 2015 | Aug. 29, 2015 | May 27, 2017 | May 28, 2016 | May 30, 2015
Intangibles assets acquired | $ 3,490 |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 37,359 | $ 32,313 | $ 33,827 | $ 33,373 | $ 39,568 | $ 31,291 | $ 34,086 | $ 37,071 | $ 136,872 | $ 142,016 | $ 136,957
Gross profit |  | $ 11,987 | $ 10,692 | $ 10,964 | $ 10,240 | $ 13,388 | $ 9,750 | $ 10,435 | $ 11,262 | 43,883 | 44,835 | $ 41,138
Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |
Intangibles assets acquired | $ 600 |  |  |  |  |  |  |  |  |  |  |
Finite lived intangible asset useful life | 3 years |  |  |  |  |  |  |  |  |  |  |
Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |
Intangibles assets acquired | $ 2,500 |  |  |  |  |  |  |  |  |  |  |
Finite lived intangible asset useful life | 20 years |  |  |  |  |  |  |  |  |  |  |
Non-compete Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |
Intangibles assets acquired | $ 200 |  |  |  |  |  |  |  |  |  |  |
Finite lived intangible asset useful life | 5 years |  |  |  |  |  |  |  |  |  |  |
Technology [Member] |  |  |  |  |  |  |  |  |  |  |  |
Intangibles assets acquired | $ 200 |  |  |  |  |  |  |  |  |  |  |
Finite lived intangible asset useful life | 10 years |  |  |  |  |  |  |  |  |  |  |
IMES [Member] |  |  |  |  |  |  |  |  |  |  |  |
Purchase price | $ 12,200 |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 7,900 | 7,600 |
Gross profit |  |  |  |  |  |  |  |  |  | $ 3,700 | $ 4,400 |
Gross profit (percentage) |  |  |  |  |  |  |  |  |  | 46.50% | 57.20% |
IMES [Member] | Executive Vice President [Member] |  |  |  |  |  |  |  |  |  |  |  |
Executive base compensation | $ 300 |  |  |  |  |  |  |  |  |  |  |
Annual bonus based on percent of EBITDA | 20.00% |  |  |  |  |  |  |  |  |  |  |
Minimum EBITDA to receive annual bonus | $ 2,000 |  |  |  |  |  |  |  |  |  |  |
Payment Termination terms | 5 years |  |  |  |  |  |  |  |  |  |  |

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