SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) Segment	Dec. 31, 2017 USD ($) Segment
Property, Plant and Equipment [Line Items]
Allowance for doubtful accounts	$ 200	$ 500
Number of reporting units with goodwill	2
Aggregate number of reporting units	4
Number of reportable segments \| Segment	2	2
Impairment of goodwill		$ 1,445
Impairment charges	$ 1,350
Increase (decrease) in retained earnings	100
Increase (decrease) in assets	5,300
Increase (decrease) in liabilities	5,200
Non Complete Agreements [Member]
Property, Plant and Equipment [Line Items]
Impairment charges	103
Technology Related Industry [Member]
Property, Plant and Equipment [Line Items]
Impairment charges	870
Customer Relationships [Member]
Property, Plant and Equipment [Line Items]
Impairment charges	$ 377
Furniture and Fixtures [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Furniture and Fixtures [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Building [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	25 years
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Computer Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Computer Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
T and D Segment [Member]
Property, Plant and Equipment [Line Items]
Impairment of goodwill		1,445
Impairment charges	$ 1,350
Allocated goodwill	5,600
Critical Power Segment [Member]
Property, Plant and Equipment [Line Items]
Impairment of goodwill
Allocated goodwill	$ 3,000

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