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Derivative Instruments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Derivative, Notional Amount1	$ 10,558	$ 10,734
DerivativeAssetFairValueGrossAsset	1,127	1,210
Derivative Asset, Fair Value, Gross Liability	1,127	1,210
Derivative, Interest Rate Swap, Pay Fixed, Receive Variable [Member]
Derivative [Line Items]
Derivative, Notional Amount1	5,279	5,367
DerivativeAssetFairValueGrossAsset	0	0
Derivative Asset, Fair Value, Gross Liability	1,127	1,210
Derivative, Interest Rate Swap, Pay Variable, Receive Fixed [Member]
Derivative [Line Items]
Derivative, Notional Amount1	5,279	5,367
DerivativeAssetFairValueGrossAsset	1,127	1,210
Derivative Asset, Fair Value, Gross Liability	$ 0	$ 0

Fair value of liability associated with derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

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- Definition

Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

+ References+ Details