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USD ($)

USD ($) / shares
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   &lt;div style="font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 12pt"&gt;&lt;b&gt;3. Accounts Receivable, net:&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;Accounts receivable are recorded at the invoiced amount and do not bear interest. Amounts
   collected on accounts receivable are included in net cash provided by operating activities in the
   consolidated statements of cash flows. The Company maintains an allowance for doubtful accounts for
   estimated losses inherent in its accounts receivable portfolio. In establishing the required
   allowance, management considers historical losses adjusted to take into account current market
   conditions and its customers&amp;#8217; financial condition, the amount of receivables in dispute, the
   current receivables aging, and current payment patterns. The Company reviews its allowance for
   doubtful accounts monthly. Account balances are charged off against the allowance after all means
   of collection have been exhausted and the potential for recovery is considered remote. The balance
   of the allowance for doubtful accounts at March&amp;#160;31, 2011 and December&amp;#160;31, 2010 was $2.8&amp;#160;million and
   $2.5&amp;#160;million, respectively. The Company does not have any off balance sheet credit exposure
   related to its customers.
   &lt;/div&gt;
   &lt;/div&gt;
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