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Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Future minimum lease payments under operating leases
2013	$ 333
2014	263
2015	95
2016	100
2017	86
Thereafter	77
Total minimum lease payments	$ 954

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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