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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | CEVA, INC. SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
|  | Balance at beginning of period |  |  | Additions |  |  | Deduction |  |  | Balance at end of period |
Year ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 25 |  |  | $ | — |  |  | $ | 25 |  |  | $ | — |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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