Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Operating lease commitments
2012	$ 497
2013	1,520
2014	1,149
2015	1,186
2016	1,222
2017	1,259
Thereafter	3,649
Total	10,482
Less sublease income
2012	(22)
2013	(36)
Total	(58)
Net lease payments required
2012	475
2013	1,484
2014	1,149
2015	1,186
2016	1,222
2017	1,259
Thereafter	3,649
Total	10,424
Purchase commitments
2012	488
2013	882
2014	300
2015	142
2016	92
2017	61
Total	1,965
Debt commitments
2013	4,750
2014	9,500
2015	13,062
2016	14,250
2017	32,934
Total	74,496
Total
2012	963
2013	7,116
2014	10,949
2015	14,390
2016	15,564
2017	34,254
Thereafter	3,649
Total	$ 86,885

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Net lease payment transaction.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

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Amount of the recorded unconditional purchase obligation maturing in the second fiscal year following the latest fiscal year.

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Amount of the recorded unconditional purchase obligation maturing in the third fiscal year following the latest fiscal year.

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