The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

+ References+ Details

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

+ References+ Details

- Definition

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

+ References

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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+ Details

Restructuring Charges (Narrative) (Details) (USD $)	12 Months Ended
Restructuring Charges (Narrative) (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2009	Dec. 31, 2010	Dec. 31, 2008
Restructuring Cost and Reserve [Line Items]
Severance charges accrual	$ 500,000
Restructuring cost severance payments to be paid		13,000
Restructuring expenses		900,000
Severance costs	1,300,000
Severance charges, number of employees	129	132
Lease cancellation costs	200,000
Mode [Member] \| Headcount Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	113,000
Severance costs	363,000
Hub [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	501,000	13,000
Restructuring expenses	1,035,000	993,000
Hub [Member] \| Headcount Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	364,000	13,000
Severance costs	851,000	993,000
Hub [Member] \| Consolidation Of Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	137,000
Severance costs	$ 184,000