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SEGMENT REPORTING (Tables)
 3 Months Ended
Mar. 31, 2013
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Other operations include certain IT activities (protocol management software for cancer patients and billing software) and outsourced consulting activities performed by the Company's DSIT subsidiary and Cathodic Protection activities in the Company's OmniMetrix subsidiary) that do not meet the quantitative thresholds under applicable accounting principles.

 
 
Energy &
Security
Sonar
Solutions
 
GridSense
 
USSI
 
Power Generation Monitoring
 
Other
 
Total
Three months ended March 31, 2013
 
 
 
 
 
 
 
 
 
 
 
 
Revenues from external customers
 
$
3,046

 
$
1,543

 
$
325

 
$
396

 
$
406

 
$
5,716

Intersegment revenues
 
—

 
—

 
39

 
—

 
—

 
39

Segment gross profit (loss)
 
1,222

 
661

 
(168
)
 
236

 
174

 
2,125

Depreciation and amortization
 
57

 
104

 
84

 
88

 
40

 
373

Stock compensation expense
 
—

 
—

 
34

 
—

 
—

 
34

Segment net income (loss) before income taxes
 
252

 
(1,147
)
 
(1,851
)
 
(381
)
 
12

 
(3,115
)
 
 
 
 
 
 
 
 
 
 
 
 

Three months ended March 31, 2012
 
 
 
 
 
 
 
 
 
 
 
 
Revenues from external customers
 
$
2,763

 
$
918

 
$
121

 
$
85

 
$
296

 
$
4,183

Intersegment revenues
 
—

 
—

 
—

 
—

 
—

 
—

Segment gross profit (loss)
 
960

 
344

 
(211
)
 
40

 
67

 
1,200

Depreciation and amortization
 
58

 
96

 
70

 
43

 
25

 
292

Stock compensation expense
 
—

 
—

 
—

 
—

 
—

 
—

Segment net income (loss) before income taxes
 
160

 
(1,199
)
 
(1,715
)
 
(15
)
 
(67
)
 
(2,836
)
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
Reconciliation of Segment Income (Loss) to Consolidated Net Loss
 
 
Three months ended March 31,
 
 
2012
 
2013
Total net loss before income taxes for reportable segments
 
$
(2,769
)
 
$
(3,127
)
Other operational segment net income (loss) before income taxes
 
(67
)
 
12

Total segment net loss before income taxes
 
(2,836
)
 
(3,115
)
Unallocated cost of corporate headquarters*
 
(1,460
)
 
(1,392
)
Unallocated cost of DSIT and OmniMetrix headquarters
 
(74
)
 
(611
)
Consolidated loss before income taxes
 
$
(4,370
)
 
$
(5,118
)