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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Details) (Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Mar. 31, 2017
Aggregate cost   $ 336
Gross unrealized losses   1
2017   12
2018   54
2019   54
2020   49
2021   44
2022   34
2022 and the remaining   $ 23
Customer List and Backlog [Member] | Maximum [Member]    
Useful life 10 years  
Covenant Not To Compete [Member] | Maximum [Member]    
Useful life 10 years  
Huber Precision [Member] | Customer List and Backlog [Member]    
Impairment charge $ 113