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Commitments and Contingencies Textuals (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Liabilty Recorded For Stanby Letter of Credit [Abstract]
Liability Recorded For Standy Letters Of Credit	$ 74	$ 69
Operating Leases, Future Minimum Payments Due [Abstract]
Operating Leases, Future Minimum Payments Due, Current	298
Operating Leases, Future Minimum Payments, Due in Two Years	179
Operating Leases, Future Minimum Payments, Due in Three Years	137
Operating Leases, Future Minimum Payments, Due in Four Years	95
Operating Leases, Future Minimum Payments, Due in Five Years	$ 45

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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