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Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2014
Segment Information [Abstract] |
Financial Information Relating To Continuing Operating Segments |
|  | 2014 |  |  | 2013
Net revenues |  |  |  |  |  |  |
Production Monitoring |  | $ | 7,041 |  |  | $ | 6,541
Total |  |  | 7,041 |  |  |  | 6,541
Sales in foreign countries |  |  |  |  |  |  |
Production Monitoring |  |  | 973 |  |  |  | 932
Total |  |  | 973 |  |  |  | 932
Interest income |  |  |  |  |  |  |
Production Monitoring |  |  | 0 |  |  |  | 1
ESI Investment Company |  |  | 2 |  |  |  | 4
Total |  |  | 2 |  |  |  | 5
Depreciation and amortization expense |  |  |  |  |  |  |
Production Monitoring |  |  | 209 |  |  |  | 110
Total |  |  | 209 |  |  |  | 110
Interest expense |  |  |  |  |  |  |
Production Monitoring |  |  | 17 |  |  |  | 0
Total |  |  | 17 |  |  |  | 0
Capital purchases |  |  |  |  |  |  |
Production Monitoring |  |  | 46 |  |  |  | 23
Total |  |  | 46 |  |  |  | 23
Total assets |  |  |  |  |  |  |
Production Monitoring |  |  | 4,945 |  |  |  | 3,022
ESI Investment Company |  |  | 8,819 |  |  |  | 9,587
Total |  |  | 13,764 |  |  |  | 12,609
Income before income taxes |  |  |  |  |  |  |
Production Monitoring |  |  | 389 |  |  |  | 404
ESI Investment Company |  |  | 1,165 |  |  |  | 534
Total |  |  | 1,554 |  |  |  | 938

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8721-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599 + Details
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