SELECTED QUARTERLY FINANCIAL DATA (Unaudited) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
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	$ 5,067us-gaap_SalesRevenueNet	$ 9,928us-gaap_SalesRevenueNet	$ 9,128us-gaap_SalesRevenueNet	$ 8,256us-gaap_SalesRevenueNet	$ 9,271us-gaap_SalesRevenueNet	$ 8,582us-gaap_SalesRevenueNet	$ 7,915us-gaap_SalesRevenueNet	$ 7,879us-gaap_SalesRevenueNet	$ 8,038us-gaap_SalesRevenueNet	$ 7,639us-gaap_SalesRevenueNet	$ 8,522us-gaap_SalesRevenueNet	$ 8,335us-gaap_SalesRevenueNet
Operating income (loss)	(3,203)us-gaap_OperatingIncomeLoss	(681)us-gaap_OperatingIncomeLoss	769us-gaap_OperatingIncomeLoss	627us-gaap_OperatingIncomeLoss	581us-gaap_OperatingIncomeLoss	403us-gaap_OperatingIncomeLoss	151us-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)	(63)	56	250	(1,217)	(706)	367	(6,130)	(6,079)	(3,155)	624	(833)	(2,091)	(7,686)	(9,495)
Benefit from (provision for) income taxes	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	(1,302)us-gaap_IncomeTaxExpenseBenefit	1,285us-gaap_IncomeTaxExpenseBenefit	(379)us-gaap_IncomeTaxExpenseBenefit	388us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit	(44)us-gaap_IncomeTaxExpenseBenefit
Discontinued operations, net of taxes	0	0	0	0	(3)	(128)	206	232	(548)	(75)	(1,235)	64	0	307	(1,794)
Net income (loss)	$ (2,334)us-gaap_NetIncomeLoss	$ (63)us-gaap_NetIncomeLoss	$ 56us-gaap_NetIncomeLoss	$ 250us-gaap_NetIncomeLoss	$ (1,220)us-gaap_NetIncomeLoss	$ (834)us-gaap_NetIncomeLoss	$ 573us-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)	$ 0	$ 0	$ 0.01	$ (0.04)	$ (0.03)	$ 0.01	$ (0.22)	$ (0.27)	$ (0.07)	$ 0.01	$ (0.01)
Discontinued operations (in dollars per share)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.01	$ 0.01	$ (0.02)	$ 0	$ (0.05)	$ 0
Income (loss) per share, basic (in dollars per share)	$ (0.08)us-gaap_EarningsPerShareBasic	$ 0us-gaap_EarningsPerShareBasic	$ 0us-gaap_EarningsPerShareBasic	$ 0.01us-gaap_EarningsPerShareBasic	$ (0.04)us-gaap_EarningsPerShareBasic	$ (0.03)us-gaap_EarningsPerShareBasic	$ 0.02us-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	27,905,940	27,785,280	27,738,083	27,682,602	27,682,602	27,682,272	2,766,710	27,475,813	27,468,355	27,460,483	27,438,584	27,832,859	27,678,698	27,466,549
Income (loss) per shares, diluted [Abstract]
Continuing operations (in dollars per share)	$ (0.08)	$ 0	$ 0	$ 0.01	$ (0.04)	$ (0.03)	$ 0.01	$ (0.22)	$ (0.27)	$ (0.07)	$ 0.01	$ (0.01)
Discontinued operations (in dollars per share)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.01	$ 0.01	$ (0.02)	$ 0	$ (0.05)	$ 0
Income (loss) per share, diluted (in dollars per share)	$ (0.08)us-gaap_EarningsPerShareDiluted	$ 0us-gaap_EarningsPerShareDiluted	$ 0us-gaap_EarningsPerShareDiluted	$ 0.01us-gaap_EarningsPerShareDiluted	$ (0.04)us-gaap_EarningsPerShareDiluted	$ (0.03)us-gaap_EarningsPerShareDiluted	$ 0.02us-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	27,905,940	28,237,883	28,142,253	27,682,602	27,682,602	27,682,272	27,667,102	27,475,813	27,468,355	27,460,483	27,438,584	27,832,859	27,678,698	27,466,549

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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