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Investments | 12 Months Ended
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Sep. 02, 2018
Investments, Debt and Equity Securities [Abstract] |
Investments | Note 2—Investments The Company’s investments were as follows:
2018: | Cost Basis |  | Unrealized Losses, Net |  | Recorded Basis
Available-for-sale: |  |  |  |  |
Government and agency securities | $ | 912 |  |  | $ | (14 | ) |  | $ | 898 |
Held-to-maturity: |  |  |  |  |
Certificates of deposit | 306 |  |  |  |  | 306 |
Total short-term investments | $ | 1,218 |  |  | $ | (14 | ) |  | $ | 1,204 |
2017: | Cost Basis |  | Unrealized Gains, Net |  | Recorded Basis
Available-for-sale: |  |  |  |  |
Government and agency securities | $ | 947 |  |  | $ | 0 |  |  | $ | 947 |
Mortgage-backed securities | 1 |  |  | 0 |  |  | 1 |
Total available-for-sale | 948 |  |  | 0 |  |  | 948 |
Held-to-maturity: |  |  |  |  |
Certificates of deposit | 285 |  |  |  |  | 285 |
Total short-term investments | $ | 1,233 |  |  | $ | 0 |  |  | $ | 1,233 |
Gross unrealized gains and losses on available-for-sale securities were not material in 2018, 2017, and 2016. At the end of 2018 and 2017, the Company's available-for-sale securities that were in a continuous unrealized-loss position were not material. The Company had no available-for-sale securities in a continuous unrealized-loss position in 2016. Gross unrealized gains and losses on cash equivalents were not material at the end of 2018, and there were no gross unrealized gains and losses on cash equivalents at the end of 2017 or 2016. The proceeds from sales of available-for-sale securities were $39, $202, and $291 during 2018, 2017, and 2016, respectively. Gross realized gains or losses from sales of available-for-sale securities were not material in 2018, 2017, and 2016. The maturities of available-for-sale and held-to-maturity securities at the end of 2018 were as follows:
| Available-For-Sale |  | Held-To-Maturity
| Cost Basis |  | Fair Value |
Due in one year or less | $ | 307 |  |  | $ | 305 |  |  | $ | 306 |
Due after one year through five years | 584 |  |  | 572 |  |  | 0 |
Due after five years | 21 |  |  | 21 |  |  | 0 |
Total | $ | 912 |  |  | $ | 898 |  |  | $ | 306 |

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 + Details
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