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GOODWILL AND INTANGIBLE ASSETS (Details) (USD $)	9 Months Ended
	Sep. 30, 2013
Goodwill [Line Items]
Goodwill, Impairment Loss	$ (1,930,000)
Goodwill [Roll Forward]
Goodwill	6,630,000
Goodwill, Translation Adjustments	(203,000)
Goodwill	4,497,000
Energy & Security Sonar Solutions Segment [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	0
Goodwill [Roll Forward]
Goodwill	541,000
Goodwill, Translation Adjustments	29,000
Goodwill	570,000
GridSense segment [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	0
Goodwill [Roll Forward]
Goodwill	2,757,000
Goodwill, Translation Adjustments	(232,000)
Goodwill	2,525,000
USSI segment [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	0
Goodwill [Roll Forward]
Goodwill	1,402,000
Goodwill, Translation Adjustments	0
Goodwill	1,402,000
Power Generation Monitoring segment [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	(1,517,000)
Goodwill [Roll Forward]
Goodwill	1,517,000
Goodwill, Translation Adjustments	0
Goodwill	0
All Other Segments [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	(413,000)
Goodwill [Roll Forward]
Goodwill	413,000	[1]
Goodwill, Translation Adjustments	0	[1]
Goodwill	$ 0	[1]
[1] * Results for the Cathodic Protection ("CP") segment are included in "Other" in Segment Reporting (see Note 10).

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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