SAE Foundation Notes to the Financial Statements (continued) 4. Pledges Receivable Pledges receivable consist of the following at: 2015 December 31, Unrestricted pledges Temporarily restricted pledges Permanently restricted $ 221 1,039 10 $ 1,270 (17) (40) Gross pledges receivable Less: Unamortized discount Less: Allowance for doubtful accounts 38 | 2015 Annual Report 2014 (in thousands) 237 344 12 593 (6) (75) Pledges Receivable $ 1,213 $ 512 Amounts due in Less than one year One to five years $ 784 429 $ 370 142 $ 1,213 $ 512