EQUITY INCENTIVE PLAN (Narrative) (Details) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, unrecognized compensation expense related to unvested stock options	$ 100,000
Share-based compensation, weighted average period that unrecognized compensation expense related to unvested stock options is recognized	1 year 1 day
Number of outstanding options vested or expected to vest (in shares)	720,128
Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 100,000	$ 600,000
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, fair value assumptions, dividend yield	0.00%
Outstanding SARs (in shares)	83,333	98,333
Weighted average exercise price of SARs (in usd per share)	$ 4.32	$ 4.14
Intrinsic value	$ 0
Weighted average remaining contractual terms	6 years 8 months
Number of shares exercisable	83,333
Exercises in period (in shares)	0	0
Stock Appreciation Rights (SARs) \| Accrued expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 100,000
Decrease in share based compensation expense	$ 100,000
Stock Appreciation Rights (SARs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, fair value assumptions, risk free interest rate	1.13%
Stock options, fair value assumptions, historical volatility rate	85.00%
Stock Appreciation Rights (SARs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, fair value assumptions, risk free interest rate	1.92%
Stock options, fair value assumptions, expected life	6 years
Stock options, fair value assumptions, historical volatility rate	86.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, fair value assumptions, dividend yield		0.00%
Stock options, grants in period, weighted average grant date fair value	$ 0.60	$ 0.96
Weighted average exercise price (in usd per share)	$ 3.55
Stock options, outstanding, aggregate intrinsic value	$ 0
Remaining weighted average contractual life	7 years 6 months 1 day
Options exercisable (in shares)	537,091
Options exercisable, weighted average exercise price (in usd per share)	$ 4.26
Stock options, exercisable, aggregate intrinsic value	$ 0
Stock options, remaining weighted-average contractual life	7 years 2 months
Stock options, exercised (in shares)	0	0
Stock options vested in current year, fair value	$ 600,000	$ 800,000
Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, fair value assumptions, risk free interest rate		1.32%
Stock options, fair value assumptions, expected life		4 years
Stock options, fair value assumptions, historical volatility rate		83.00%
Stock Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, fair value assumptions, risk free interest rate		1.91%
Stock options, fair value assumptions, expected life		6 years
Stock options, fair value assumptions, historical volatility rate		86.00%
Equity incentive plan 2006
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, number of shares authorized	1,666,666
Share-based compensation, award expiration period	10 years
Equity incentive plan 2006 \| Restricted Stock, Restricted Stock Units, Performance Units, Performance Shares And Other Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, number of shares authorized	1,250,000

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Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period

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Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercisable, Number

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Fair Value

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested options awarded to employees as compensation.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of non-option equity instruments exercised by participants.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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