Marketable Securities (Details Narrative) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2018	Dec. 31, 2017
Common Stock [Member]
Gross unrealized gains (losses)		$ 132

Amount refers to the gross unrealized gains and losses.

No definition available.

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Namespace Prefix:	dpw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration