SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Revenue from External Customers	$ 5,716	$ 4,183
Intersegment Revenue	39	0
Segment gross profit (loss)	2,125	1,200
Segment depreciation and amortization	373	292
Segment share based compensation expense	34	0
Segment net income (loss) before income taxes	(3,115)	(2,836)
Energy & Security Sonar Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenue from External Customers	3,046	2,763
Intersegment Revenue	0	0
Segment gross profit (loss)	1,222	960
Segment depreciation and amortization	57	58
Segment share based compensation expense	0	0
Segment net income (loss) before income taxes	252	160
GridSense segment [Member]
Segment Reporting Information [Line Items]
Revenue from External Customers	1,543	918
Intersegment Revenue	0	0
Segment gross profit (loss)	661	344
Segment depreciation and amortization	104	96
Segment share based compensation expense	0	0
Segment net income (loss) before income taxes	(1,147)	(1,199)
USSI segment [Member]
Segment Reporting Information [Line Items]
Revenue from External Customers	325	121
Intersegment Revenue	39	0
Segment gross profit (loss)	(168)	(211)
Segment depreciation and amortization	84	70
Segment share based compensation expense	34	0
Segment net income (loss) before income taxes	(1,851)	(1,715)
Power Generation Monitoring segment [Member]
Segment Reporting Information [Line Items]
Revenue from External Customers	396	85
Intersegment Revenue	0	0
Segment gross profit (loss)	236	40
Segment depreciation and amortization	88	43
Segment share based compensation expense	0	0
Segment net income (loss) before income taxes	(381)	(15)
All Other Segments [Member]
Segment Reporting Information [Line Items]
Revenue from External Customers	406	296
Intersegment Revenue	0	0
Segment gross profit (loss)	174	67
Segment depreciation and amortization	40	25
Segment share based compensation expense	0	0
Segment net income (loss) before income taxes	$ 12	$ (67)