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SELECTED QUARTERLY FINANCIAL DATA (Unaudited) (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
SELECTED QUARTERLY FINANCIAL DATA (Unaudited) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues | $ 5,067 us-gaap_SalesRevenueNet | $ 9,928 us-gaap_SalesRevenueNet | $ 9,128 us-gaap_SalesRevenueNet | $ 8,256 us-gaap_SalesRevenueNet | $ 9,271 us-gaap_SalesRevenueNet | $ 8,582 us-gaap_SalesRevenueNet | $ 7,915 us-gaap_SalesRevenueNet | $ 7,879 us-gaap_SalesRevenueNet | $ 8,038 us-gaap_SalesRevenueNet | $ 7,639 us-gaap_SalesRevenueNet | $ 8,522 us-gaap_SalesRevenueNet | $ 8,335 us-gaap_SalesRevenueNet |  |  |
Operating income (loss) | (3,203)us-gaap_OperatingIncomeLoss | (681)us-gaap_OperatingIncomeLoss | 769 us-gaap_OperatingIncomeLoss | 627 us-gaap_OperatingIncomeLoss | 581 us-gaap_OperatingIncomeLoss | 403 us-gaap_OperatingIncomeLoss | 151 us-gaap_OperatingIncomeLoss | (6,125)us-gaap_OperatingIncomeLoss | (5,898)us-gaap_OperatingIncomeLoss | (2,675)us-gaap_OperatingIncomeLoss | (957)us-gaap_OperatingIncomeLoss | (679)us-gaap_OperatingIncomeLoss | (2,488)us-gaap_OperatingIncomeLoss | (4,846)us-gaap_OperatingIncomeLoss | (10,209)us-gaap_OperatingIncomeLoss
Income (loss) before income tax and discontinued operations | (2,334)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (63)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 56 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 250 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (1,217)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (706)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 367 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (6,130)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (6,079)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (3,155)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 624 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (833)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (2,091)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (7,686)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (9,495)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Benefit from (provision for) income taxes | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | (1,302)us-gaap_IncomeTaxExpenseBenefit | 1,285 us-gaap_IncomeTaxExpenseBenefit | (379)us-gaap_IncomeTaxExpenseBenefit | 388 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | (44)us-gaap_IncomeTaxExpenseBenefit
Discontinued operations, net of taxes | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (3)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (128)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 206 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 232 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (548)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (75)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (1,235)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 64 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 307 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (1,794)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
Net income (loss) | $ (2,334)us-gaap_NetIncomeLoss | $ (63)us-gaap_NetIncomeLoss | $ 56 us-gaap_NetIncomeLoss | $ 250 us-gaap_NetIncomeLoss | $ (1,220)us-gaap_NetIncomeLoss | $ (834)us-gaap_NetIncomeLoss | $ 573 us-gaap_NetIncomeLoss | $ (5,898)us-gaap_NetIncomeLoss | $ (7,929)us-gaap_NetIncomeLoss | $ (1,945)us-gaap_NetIncomeLoss | $ (990)us-gaap_NetIncomeLoss | $ (381)us-gaap_NetIncomeLoss | $ (2,091)us-gaap_NetIncomeLoss | $ (7,379)us-gaap_NetIncomeLoss | $ (11,245)us-gaap_NetIncomeLoss
Income (loss) per share, basic [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations (in dollars per share) | $ (0.08)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 0 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 0 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 0.01 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ (0.04)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ (0.03)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 0.01 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ (0.22)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ (0.27)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ (0.07)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 0.01 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ (0.01)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare |  |  |
Discontinued operations (in dollars per share) | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0.01 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0.01 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ (0.02)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ (0.05)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare |  |  |
Income (loss) per share, basic (in dollars per share) | $ (0.08)us-gaap_EarningsPerShareBasic | $ 0 us-gaap_EarningsPerShareBasic | $ 0 us-gaap_EarningsPerShareBasic | $ 0.01 us-gaap_EarningsPerShareBasic | $ (0.04)us-gaap_EarningsPerShareBasic | $ (0.03)us-gaap_EarningsPerShareBasic | $ 0.02 us-gaap_EarningsPerShareBasic | $ (0.21)us-gaap_EarningsPerShareBasic | $ (0.29)us-gaap_EarningsPerShareBasic | $ (0.07)us-gaap_EarningsPerShareBasic | $ (0.04)us-gaap_EarningsPerShareBasic | $ (0.01)us-gaap_EarningsPerShareBasic | $ (0.08)us-gaap_EarningsPerShareBasic | $ (0.27)us-gaap_EarningsPerShareBasic | $ (0.41)us-gaap_EarningsPerShareBasic
Basic weighted average shares outstanding (in shares) | 27,905,940 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,905,940 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,785,280 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,738,083 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,682,602 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,682,602 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,682,272 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 2,766,710 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,475,813 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,468,355 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,460,483 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,438,584 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,832,859 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,678,698 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 27,466,549 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Income (loss) per shares, diluted [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations (in dollars per share) | $ (0.08)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 0 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 0 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 0.01 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ (0.04)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ (0.03)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 0.01 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ (0.22)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ (0.27)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ (0.07)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 0.01 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ (0.01)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare |  |  |
Discontinued operations (in dollars per share) | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0.01 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0.01 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ (0.02)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ (0.05)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare |  |  |
Income (loss) per share, diluted (in dollars per share) | $ (0.08)us-gaap_EarningsPerShareDiluted | $ 0 us-gaap_EarningsPerShareDiluted | $ 0 us-gaap_EarningsPerShareDiluted | $ 0.01 us-gaap_EarningsPerShareDiluted | $ (0.04)us-gaap_EarningsPerShareDiluted | $ (0.03)us-gaap_EarningsPerShareDiluted | $ 0.02 us-gaap_EarningsPerShareDiluted | $ (0.21)us-gaap_EarningsPerShareDiluted | $ (0.29)us-gaap_EarningsPerShareDiluted | $ (0.07)us-gaap_EarningsPerShareDiluted | $ (0.04)us-gaap_EarningsPerShareDiluted | $ (0.01)us-gaap_EarningsPerShareDiluted | $ (0.08)us-gaap_EarningsPerShareDiluted | $ (0.27)us-gaap_EarningsPerShareDiluted | $ (0.41)us-gaap_EarningsPerShareDiluted
Diluted weighted average shares outstanding (in shares) | 27,905,940 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,905,940 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 28,237,883 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 28,142,253 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,682,602 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,682,602 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,682,272 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,667,102 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,475,813 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,468,355 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,460,483 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,438,584 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,832,859 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,678,698 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 27,466,549 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35710027&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + Details
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