(10) Litigation (Details Narrative) (USD $)		6 Months Ended		12 Months Ended	30 Months Ended
	Jun. 30, 2013 Prepaid Expenses and other current assets	Jun. 30, 2013 Internal and Government Investigations	Jun. 30, 2013 Stockholder Litigation	Dec. 31, 2012 Stockholder Litigation	Jun. 30, 2013 Stockholder Litigation	Jan. 20, 2013 Proposed Settlement Class Action Lawsuit
Deferred Prosecution Agreement (DPA) with the USAO		Under the DPA, the USAO agrees that it will defer prosecution of the Company in connection with the matter, and ultimately not prosecute the Company if the Company satisfies its obligations during the 18 month term of the DPA. The DPA acknowledges the remedial actions taken by the Company in response to its discovery of the improper payments and does not require the Company to make any additional control or compliance changes. Under the DPA, the Company will forfeit $2.9 million over eighteen months.
Settlement with United States Attorney's Office amount paid		$ 4,100,000
Settlement amount		5,800,000				5,000,000
Settlement with United States Attorney's Office amount accrued, payable in December 2013		1,700,000
Receivables included in prepaid expenses and other current assets	1,200,000
Class Action agreement			Company will pay $5.0 million to settle the Class Action
Company’s Directors and Officers (“D&O”) Insurance Agreement			Company entered into an agreement with the carrier of the first $5.0 million layer of the Company’s D&O insurance. Pursuant to this agreement, the Company accepted a payment of $3.9 million from the first layer insurance carrier in satisfaction of the carrier’s obligations to the Company under the first layer D&O insurance policy. The combined costs of (i) defense of the Class Action and the Derivative Action, and (ii) the proposed $5.0 million settlement of the Class Action exceeds $3.9 million, and the Company is responsible for paying the next $1.1 million of costs, settlement amounts or liability up to $5.0 million, before the next layer of the Company’s D&O insurance might cover the Company. This $5.0 million payment, when and if made, will negatively impact its cash flows and its cash reserves when paid. In addition, as part of the October 2012 agreement with the carrier, the Company agreed to indemnify the carrier of the first layer of D&O insurance against potential claims by certain named insured persons under the first layer D&O insurance policy. The Company cannot predict the likelihood or the outcome of any such claims by the named insureds.
Accrued liability for costs associated with the Class Action and the Derivative Actions			5,300,000		5,300,000
Cost recorded associated with the Class Action and the Derivative Actions					7,000,000
Total investigation, litigation, and settlement related costs related to the class action and derivative lawsuits that are not or may not be recoverable through insurance			100,000
Insurance recovery				$ 3,900,000