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Accrued Liabilities (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Components of other long-term liabilities
Long-term portion of lease abandonment accrual	$ 1,027	$ 1,179
Long-term portion of deferred tax liability	95	93
Total	$ 1,122	$ 1,272

Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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