Weighted-average grant date fair value of equity instruments other than options vested during the reporting period.

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Represents the maximum period with-in which the options can be exercised, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Represents the percentage which the employee can vest with-in the specified period.

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Refers to the description of assuming the value of stock price.

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Unrecognized cost of unvested share-based compensation awards.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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 number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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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No definition available.

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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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No definition available.

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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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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Price of a single share of a number of saleable stocks of a company.

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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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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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

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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under the plan available for future stock-based compensation (in shares)	1,622,590		1,622,590
Stock Options [Roll Forward]
Stock Options, Beginning Balance (in shares)			551,409
Stock Options, Granted in Period (in shares)			0
Stock Options, Forfeited / Expired (in shares)			(178,589)
Stock Options, Exercised (in shares)			0
Stock Options, Ending Balance (in shares)	372,820		372,820
Stock Options, Exercisable Ending Balance (in shares)	227,969		227,969
Stock Options, Weighted-Average Exercise Price [Roll Forward]
Stock Options, Weighted-Average Exercise Price, Beginning Balance (in dollars per share)			$ 6.05
Stock Options, Granted, Weighted-Average Exercise Price (in dollars per share)			0
Stock Options, Forfeited / Expired, Weighted Average Exercise Price (in dollars per share)			5.75
Stock Options, Exercised, Weighted Average Exercise Price (in dollars per share)			0
Stock Options, Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 6.20		6.20
Stock Options Exercisable, Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 7.47		$ 7.47
Outstanding, Weighted-Average Remaining Contractual Life			7 years 3 months 4 days
Exercisable, Weighted-Average Remaining Contractual Life			6 years 6 months 11 days
Stock-based compensation			$ 466	$ 1,168
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage that can vest per year (in hundredths)			25.00%
Vesting period			4 years
Stock Options, Weighted-Average Exercise Price [Roll Forward]
Total intrinsic value of stock options exercised	$ 0	$ 0	$ 0	0
Total fair value of options vested	0	700	0	700
Option outstanding, intrinsic value	0		0
Options exercisable, intrinsic value	$ 0		$ 0
Valuation assumptions			based on our $2.44 closing stock price
Stock price (in dollars per share)	$ 2.44		$ 2.44
Stock-based compensation	$ 40	$ 300	$ 77	400
Unrecognized stock-based compensation expense	100		$ 100
Stock Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised period for vest from grant date			10 years
Restricted Stock Award [Member]
Stock Options, Weighted-Average Exercise Price [Roll Forward]
Option outstanding, intrinsic value	$ 600		$ 600
Valuation assumptions			based on a $2.44 closing stock price
Stock price (in dollars per share)	$ 2.44		$ 2.44
Weighted-average grant date fair value of restricted stock awards vested			$ 100	900
Stock-based compensation			300	500
Unrecognized stock-based compensation expense	$ 500		$ 500
Restricted Stock and Performance Stock Awards [Abstract]
Restricted Stock and Performance Stock Awards, Beginning Balance (in shares)			341,637
Restricted Stock and Performance Stock Awards, Shares Granted (in shares)			31,251
Restricted Stock and Performance Stock Awards, Forfeitures (in shares)			(97,210)
Restricted Stock Awarded Performance Stock Awards, Vested (in shares)			(32,294)
Restricted Stock and Performance Stock Awards, Ending Balance (in shares)	243,384		243,384
Restricted Stock and Performance Stock Awards, weighted average grant date fair value [Abstract]
Restricted Stock and Performance Stock Awards, Beginning Balance (in dollars per share)			$ 2.83
Restricted Stock and Performance Stock Awards, Granted, Weighted-Average Grant Date Fair Value (in dollars per share)			0
Restricted Stock and Performance Stock Awards, Forfeited, Weighted-Average Grant Date Fair Value (in dollars per share)			5.21
Restricted Stock and Performance Stock Awards, Vested, Weighted-Average Grant Date Fair Value (in dollars per share)			2.72
Restricted Stock and Performance Stock Awards, Weighted-Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 2.60		$ 2.60
Weighted-Average Remaining Contractual Life			1 year 2 months 26 days
Restricted Stock Units [Member]
Stock Options, Weighted-Average Exercise Price [Roll Forward]
Option outstanding, intrinsic value	$ 300		$ 300
Valuation assumptions			based on a $2.44 closing stock price
Stock price (in dollars per share)	$ 2.44		$ 2.44
Unrecognized stock-based compensation expense	$ 300		$ 300
Restricted Stock and Performance Stock Awards [Abstract]
Restricted Stock and Performance Stock Awards, Beginning Balance (in shares)			82,572
Restricted Stock and Performance Stock Awards, Shares Granted (in shares)			165,000
Restricted Stock and Performance Stock Awards, Forfeitures (in shares)			(95,836)
Restricted Stock Awarded Performance Stock Awards, Vested (in shares)			(35,726)
Restricted Stock and Performance Stock Awards, Ending Balance (in shares)	116,010		116,010
Restricted Stock and Performance Stock Awards, weighted average grant date fair value [Abstract]
Restricted Stock and Performance Stock Awards, Beginning Balance (in dollars per share)			$ 4.17
Restricted Stock and Performance Stock Awards, Granted, Weighted-Average Grant Date Fair Value (in dollars per share)			2.55
Restricted Stock and Performance Stock Awards, Forfeited, Weighted-Average Grant Date Fair Value (in dollars per share)			3.22
Restricted Stock and Performance Stock Awards, Vested, Weighted-Average Grant Date Fair Value (in dollars per share)			3.08
Restricted Stock and Performance Stock Awards, Weighted-Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 2.98		$ 2.98
Weighted-Average Remaining Contractual Life			1 year 9 months 29 days
Performance Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Stock Options, Weighted-Average Exercise Price [Roll Forward]
Stock-based compensation			$ 100	$ 0
Restricted Stock and Performance Stock Awards [Abstract]
Restricted Stock and Performance Stock Awards, Beginning Balance (in shares)			229,315
Restricted Stock and Performance Stock Awards, Shares Granted (in shares)			165,000
Restricted Stock and Performance Stock Awards, Forfeitures (in shares)			(90,798)
Restricted Stock Awarded Performance Stock Awards, Vested (in shares)			0
Restricted Stock and Performance Stock Awards, Ending Balance (in shares)	303,517		303,517
Restricted Stock and Performance Stock Awards, weighted average grant date fair value [Abstract]
Restricted Stock and Performance Stock Awards, Beginning Balance (in dollars per share)			$ 2.50
Restricted Stock and Performance Stock Awards, Granted, Weighted-Average Grant Date Fair Value (in dollars per share)			2.55
Restricted Stock and Performance Stock Awards, Forfeited, Weighted-Average Grant Date Fair Value (in dollars per share)			2.77
Restricted Stock and Performance Stock Awards, Vested, Weighted-Average Grant Date Fair Value (in dollars per share)			0
Restricted Stock and Performance Stock Awards, Weighted-Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 2.40		$ 2.40
Weighted-Average Remaining Contractual Life			2 years 5 months 1 day
Unvested Performance Stock Awards [Member]
Stock Options, Weighted-Average Exercise Price [Roll Forward]
Unrecognized stock-based compensation expense	$ 500		$ 500