Accounts Receivable

3 Months Ended

Mar. 31, 2013

Notes to Financial Statements

4. Accounts Receivable

Credit is extended to customers based on an evaluation of a customer’s financial condition and, in general, collateral is not required.  Management regularly reviews accounts receivable for uncollectible and potentially uncollectible accounts, and when necessary establishes an allowance for doubtful accounts.  Balances that are outstanding after management has used reasonable collection efforts are written-off through a reduction in the allowance for doubtful accounts and a credit to accounts receivable.