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Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financial liability recorded at fair value on a recurring basis [Abstract]
Derivative financial instrument	$ 29	$ 219
Carrying Value (Balance Sheet) [Member]
Fixed-rate debt outstanding [abstract]
Fixed-rate debt	1,113	1,260
Fair Value [Member]
Fixed-rate debt outstanding [abstract]
Fixed-rate debt	1,148	1,275
Recurring [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Derivative financial instrument	29	219
Recurring [Member] \| Level 1 [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Derivative financial instrument	0	0
Recurring [Member] \| Level 2 [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Derivative financial instrument	29	219
Recurring [Member] \| Level 3 [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Derivative financial instrument	$ 0	$ 0

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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