Income (loss) per common share (Basic and Diluted EPS) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Income (loss) from continuing operations	$ 1,884	$ (2,109)	$ (2,330)	$ (10,562)
Redeemable Class B Senior Preferred stock deemed dividend	(744)	(1,122)	(1,473)	(2,222)
Convertible Class C Preferred stock dividends	0	0	0	(5,000)
Loss available to common stockholders, from continuing operations			(3,803)	(17,784)
Income (loss) from discontinued operations, net of tax	94	(128)	251	(241)
Income (loss) available to common stockholders	$ 1,234	$ (3,359)	$ (3,552)	$ (18,025)
Weighted average outstanding shares of common stock (shares)			13,637,462	12,937,474
Loss from continuing operations (dollars per share)	$ 0.06	$ (0.24)	$ (0.28)	$ (1.37)
Income (loss) from discontinued operations (dollars per share)	$ 0.01	$ (0.01)	$ 0.02	$ (0.02)
Net income (loss) per share (in dollars per share)	$ 0.07	$ (0.25)	$ (0.26)	$ (1.39)

Income (Loss) from Continuing Operations Attributable to Common Stockholders, Basic and Diluted

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- Definition

Temporary Equity, Convertible, Beneficial Conversion Feature

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Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation, when the per share amount is the same.

+ References

No definition available.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.

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- Definition

Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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Accretion of temporary equity during the period due to cash, stock, and in-kind dividends. This item is an adjustment to net income necessary to derive net income apportioned to common stockholders and is to be distinguished from Temporary Equity, Accretion of Dividends (Temporary Equity, Accretion of Dividends).

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- Definition

Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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