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SEGMENT REPORTING Reconciliation of Segment Income (Loss) to Consolidated Net Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total consolidated revenues for reportable segments |  |  |  |  |  |  |  |  | $ 17,857 |  | $ 17,539 |  | $ 12,966 |
Other operational segment revenues |  |  |  |  |  |  |  |  | 1,562 |  | 1,389 |  | 1,278 |
Total consolidated revenues | (4,796) | (4,713) | (5,727) | (4,183) | (6,675) | (5,051) | (4,107) | (3,095) | (19,419) |  | (18,928) |  | (14,244) |
Net income (loss) before income taxes for reportable segments |  |  |  |  |  |  |  |  | (14,029) |  | (4,467) |  | (2,555) |
Other operating segment net income (loss) before income taxes |  |  |  |  |  |  |  |  | (62) |  | 298 |  | 77 |
Total segment net income (loss) before income taxes |  |  |  |  |  |  |  |  | (14,091) |  | (4,169) |  | (2,478) |
Unallocated net cost of corporate headquarters |  |  |  |  |  |  |  |  | (5,114) | [1] | (3,891) | [1] | (4,290) | [1]
Unallocated net cost of DSIT and OmniMetrix headquarters |  |  |  |  |  |  |  |  | (1,486) |  | 0 |  | 17 |
Gain on investment in GridSense |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 1,327 |
Distribution from EnerTech |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 135 |
Loss on Sale of EnerTech |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 1,821 |
Gain on sale of HangXing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 492 | 0 |  | 492 |  | 0 |
Consolidated net loss before tax | (6,150) | (5,698) | (4,473) | (4,370) | (2,237) | (1,786) | (1,861) | (1,684) | (20,691) |  | (7,568) |  | (7,110) |
Stock compensation in unallocated expenses |  |  |  |  |  |  |  |  | $ 532 |  | $ 458 |  | $ 648 |
[1] | Includes $648, $458, and $532 of stock compensation expense for the years ending December 31, 2010, 2011 and 2012, respectively.

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