Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

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Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Activity related to Non-Controlling Interest
Net loss attributable to Silver Creek	$ (113)	$ (145)	$ (231)	$ (223)
Cash, Cash Equivalents and Restricted Cash
Restricted cash	481		481		381
Silver Creek
Non-Controlling Interest
Ownership interest (as a percent)	74.00%		74.00%
Activity related to Non-Controlling Interest
Balance at the beginning of the period			574	1,027
Net loss attributable to Silver Creek			(231)	(223)
Balance at the end of the period	$ 343	$ 804	$ 343	$ 804