Share-Based Compensation (Quarter) (Detail) - Activity of the Company's stock options (USD $)	9 Months Ended	12 Months Ended
Sep. 30, 2012	Dec. 31, 2011	Dec. 31, 2010
Outstanding at beginning of year	12,000
Outstanding at beginning of year (in Dollars per share)	$ 4.99	$ 4.51	$ 4.57
Terminated	5,500
Terminated (in Dollars per share)	$ 4.30	$ 3.97	$ 5.03
Outstanding at end of period	6,500	12,000
Outstanding at end of period (in Dollars per share)	$ 5.57	$ 4.99	$ 4.51
Outstanding at end of period	1.9
Vested and expected to vest at end of period	6,500
Vested and expected to vest at end of period (in Dollars per share)	$ 5.57
Vested and expected to vest at end of period	1.9
Exercisable at end of period	6,500	12,000
Exercisable at end of period (in Dollars per share)	$ 5.57
Exercisable at end of period	1 year 328 days

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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-Name Accounting Standards Codification

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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.

+ References

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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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For presentations that combine terminations, 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 or that expired.

+ References

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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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The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.

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No definition available.

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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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The weighted-average period between the balance sheet date and expiration date for fully vested and expected to vest options that are exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.

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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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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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