Prepaid Expenses and Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Components of prepaid expenses and other current assets
Prepaid corporate insurance	$ 84	$ 36
Deposit on inventory		420
Prepaid expenses and other current assets	65	125
Total prepaid expenses and other current assets	$ 149	$ 581

The total of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer, and the aggregate carrying amount of current assets, as of the balance sheet date, not separately presented elsewhere in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer).

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Carrying amount as of the balance sheet date of unamortized costs of insurance coverage, which will be charged against earnings ratably over the period in which contractually agreed upon coverage's will be in effect; such periods expire within one year or the normal operating cycle, if longer.

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