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Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Mar. 31, 2013
Significant Accounting Policies (Textual) [Abstract]
Equity and Noncontrolling interest		20.00%
Noncontrolling interest member contributed	$ 10
Allowance for uncollectible accounts receivable	1,837	1,837
Inventory finished goods		6,265
Inventory parts		526
Inventory supplies		513
Reserve for obsolete and damaged inventory	1,181	980
Open purchase commitments		$ 2,165

X

- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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Amount before last-in first-out (LIFO) and valuation reserves of merchandise or goods held by the entity that are readily available for sale.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date for elements of machinery or equipment held for the purpose of replacing similar parts in the course of repair or maintenance.

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- Definition

Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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The amount of the valuation account as of the balance sheet date which reduces the carrying amount of inventory to net realizable value; takes into consideration such factors as market value, excessive quantities based on expected sales, technological obsolescence, and shrinkage. May also provide for estimated product returns or price concessions pertaining to product cost.

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Represents an increase in noncontrolling interest from issuance of additional equity interests to noncontrolling interest holders or the sale of a portion of the parent's controlling interest.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Open purchase commitments.

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