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Schedule II - Schedule of Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract] |
Schedule II - Schedule of Valuation and Qualifying Accounts | SCHEDULE II ENERGY FOCUS, INC. SCHEDULE OF VALUATION AND QUALIFYING ACCOUNTS (amounts in thousands)
Description |  | Beginning Balance |  | Charges to Revenue/ Expense |  | Deductions |  | Ending Balance
Year ended December 31, 2017 |  |  |  |  |  |  |  |
Allowance for doubtful accounts and returns |  | $ | 236 |  |  | $ | 23 |  |  | $ | 217 |  |  | $ | 42 |
Inventory reserves |  | 5,596 |  |  | 1,139 |  |  | 2,539 |  |  | 4,196 |
Valuation allowance for deferred tax assets |  | 12,537 |  |  | 3,883 |  |  | 5,864 |  |  | 10,556 |
Year ended December 31, 2016 |  |  |  |  |  |  |  |
Allowance for doubtful accounts and returns |  | $ | 155 |  |  | $ | 156 |  |  | $ | 75 |  |  | $ | 236 |
Inventory reserves |  | 2,315 |  |  | 6,110 |  |  | 2,829 |  |  | 5,596 |
Valuation allowance for deferred tax assets |  | 7,768 |  |  | 4,769 |  |  | — |  |  | 12,537 |
Year ended December 31, 2015 |  |  |  |  |  |  |  |
Allowance for doubtful accounts and returns |  | $ | 307 |  |  | $ | 39 |  |  | $ | 191 |  |  | $ | 155 |
Inventory reserves |  | 576 |  |  | 2,066 |  |  | 327 |  |  | 2,315 |
Valuation allowance for deferred tax assets |  | 9,008 |  |  | (1,240 | ) |  | — |  |  | 7,768 |

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- References No definition available. + Details
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