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

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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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Aggregate unrecognized cost of share-based awards, other than options, made to employees under an equity-based compensation plan, that have yet to vest.

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Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest.

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

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including 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 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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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Stock Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
Stock Based Compensation (Details) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Stock Based Compensation [Abstract]
Number of stock-based employee compensation plans	2		2
Common stock reserved for future issuance of stock options (in shares)	66,000		66,000
Share-based compensation expense	$ 100,000	$ 40,000	$ 152,000	$ 80,000
Number of Shares [Abstract]
Options outstanding, January 1, 2012 (in shares)			250,000
Granted (in shares)			0
Forfeited (in shares)			(1,000)
Exercised (in shares)			0
Options outstanding, June 30, 2012 (in shares)	249,000		249,000		250,000
Options exercisable, June 30, 2012 (in shares)	220,000		220,000
Weighted Average Exercise Price [Roll Forward]
Options outstanding, January 1, 2012 (in dollars per share)			$ 4.03
Granted (in dollars per share)			$ 0
Forfeited (in dollars per share)			$ 3.01
Exercised (in dollars per share)			$ 0
Options outstanding, June 30, 2012 (in dollars per share)	$ 4.03		$ 4.03		$ 4.03
Outstanding exercisable at June 30, 2012 (in dollars per share)	$ 4.29		$ 4.29
Average Remaining Contractual Term [Abstract]
Options outstanding, January 1, 2012			2 years		2 years
Granted			0 years
Forfeited			0 years
Exercised			0 years
Options outstanding, June 30, 2012			2 years		2 years
Outstanding exercisable at June 30, 2012			2 years
Aggregate intrinsic value of options outstanding	135,000		135,000		350,000
Aggregate intrinsic value of options exercisable	89,000		89,000		212,000
Number of Shares [Roll Forward]
Nonvested stock options at January 1, 2012 (in shares)			43,000
Granted (in shares)			0
Vested (in shares)			14,000
Forfeited (in shares)			0
Nonvested stock options at June 30, 2012 (in shares)	29,000		29,000		43,000
Weighted-Average Grant-Date Fair Value [Roll Forward]
Nonvested stock options at January 1, 2012 (in dollars per share)			$ 1.02
Granted (in dollars per share)			$ 0
Vested (in dollars per share)			$ 1.02
Forfeited (in dollars per share)			$ 0
Nonvested stock options at June 30, 2012 (in dollars per share)	$ 1.02		$ 1.02		$ 1.02
Unearned compensation costs	4,000		4,000
Restricted stock awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned compensation associated with restricted stock awards	$ 144,000		$ 144,000
Vesting period for amortization of unearned compensation related to nonvested awards			2 years
Restricted stock awards [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for amortization of unearned compensation			10 years
Restricted stock awards [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for amortization of unearned compensation			2 years