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Schedule II Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II Valuation and Qualifying Accounts | Schedule II Valuation and Qualifying Accounts
Column A |  | Column B |  | Column C |  | Column D |  | Column E
Description |  | Balance at Beginning of Period |  | Charged to (Reduction of) Cost and Expenses |  | Deductions |  | Balance at End of Period
Year ended December 31, 2018 |  |  |  |  |  |  |  |
Deducted from asset account: |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 35,000 |  |  | $ | 240,000 |  |  | $ | (106,000 | ) |  | $ | 169,000 |
Inventory reserves |  | $ | 697,000 |  |  | $ | 1,828,000 |  |  | $ | (1,849,000 | ) |  | $ | 676,000 |
Year ended December 31, 2017 |  |  |  |  |  |  |  |
Deducted from asset account: |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 82,000 |  |  | $ | 202,000 |  |  | $ | (249,000 | ) |  | $ | 35,000 |
Inventory reserves |  | $ | 966,000 |  |  | $ | 1,237,000 |  |  | $ | (1,506,000 | ) |  | $ | 697,000 |
Year ended December 31, 2016 |  |  |  |  |  |  |  |
Deducted from asset account: |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 247,000 |  |  | $ | (45,000 | ) |  | $ | (120,000 | ) |  | $ | 82,000 |
Inventory reserves |  | $ | 682,000 |  |  | $ | 984,000 |  |  | $ | (700,000 | ) |  | $ | 966,000 |

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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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- References No definition available. + Details
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