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SEGMENTS AND MAJOR CUSTOMERS (Tables) | 12 Months Ended
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Dec. 31, 2012
SEGMENTS AND MAJOR CUSTOMERS [Abstract] |
Summary of Result of Operations and Total Assets by Segment | During the years ended December 31, 2012, 2011, and 2010, USE, for financial reporting purposes, operated two business segments, the exploration for and sale of oil and gas, and mining. USE's operating segments are reflected in the tables below:
|  | (In thousands) |
|  | For the years ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Revenues: |  |  |  |  |  |  |  |  |
Oil and gas |  | $ | 32,534 |  |  | $ | 30,958 |  |  | $ | 26,548 |
Total revenues: |  |  | 32,534 |  |  |  | 30,958 |  |  |  | 26,548 |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |
Oil and gas |  |  | 30,870 |  |  |  | 25,549 |  |  |  | 16,683 |
Mineral properties |  |  | 2,899 |  |  |  | 2,364 |  |  |  | 1,878 |
Total operating expenses: |  |  | 33,769 |  |  |  | 27,913 |  |  |  | 18,561 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |
Oil and gas |  |  | 169 |  |  |  | 268 |  |  |  | -- |
Mineral properties |  |  | 24 |  |  |  | 36 |  |  |  | 48 |
Total interest expense: |  |  | 193 |  |  |  | 304 |  |  |  | 48 |
Operating (loss) income |  |  |  |  |  |  |  |  |  |  |  |
Oil and gas |  | $ | 1,495 |  |  | $ | 5,141 |  |  | $ | 9,865 |
Mineral properties |  |  | (2,923 | ) |  |  | (2,400 | ) |  |  | (1,926 | )
Operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |
from identified segments |  |  | (1,428 | ) |  |  | 2,741 |  |  |  | 7,939 |
General and administrative expenses |  |  | (9,109 | ) |  |  | (8,261 | ) |  |  | (8,973 | )
Add back interest expense |  |  | 193 |  |  |  | 304 |  |  |  | 48 |
Other revenues and expenses: |  |  | 849 |  |  |  | (717 | ) |  |  | (332 | )
(Loss) income before income taxes |  | $ | (9,495 | ) |  | $ | (5,933 | ) |  | $ | (1,318 | )
Depreciation depletion and amortization expense: |  |  |  |  |  |  |  |  |
Oil and gas |  | $ | 14,893 |  |  | $ | 13,997 |  |  | $ | 10,610 |
Mineral properties |  |  | 127 |  |  |  | 102 |  |  |  | 77 |
Corporate |  |  | 436 |  |  |  | 494 |  |  |  | 380 |
Total depreciation expense |  | $ | 15,456 |  |  | $ | 14,593 |  |  | $ | 11,067 |
|  | (In thousands) |
|  | December 31, |  |  | December 31, |  |  | December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Assets by segment |  |  |  |  |  |  |  |  |
Oil and gas |  | $ | 93,839 |  |  | $ | 109,141 |  |  | $ | 75,639 |
Mineral |  |  | 20,747 |  |  |  | 20,755 |  |  |  | 20,800 |
Corporate |  |  | 26,241 |  |  |  | 32,543 |  |  |  | 59,577 |
Total assets |  | $ | 140,827 |  |  | $ | 162,439 |  |  | $ | 156,016 |

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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 22 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599 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 Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27, 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: 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 6: 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 + Details
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