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Note 20 - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2019
Notes to Financial Statements |
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] |
20. | Valuation and Qualifying Accounts
For the years ended December 31, 2019, 2018 and 2017:
|  | Balance at Beginning of Year |  |  | Additions Charged to Earnings |  |  | Charges to Reserve, Net (1) |  |  | Reserves Established for Acquisitions |  |  | Balance at End of Year |
Year ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 4,873 |  |  | $ | 3,086 |  |  | $ | (1,033 | ) |  | $ | 42 |  |  | $ | 6,968 |
Reserves for inventory |  |  | 23,140 |  |  |  | 4,821 |  |  |  | (3,867 | ) |  |  | 199 |  |  | $ | 24,293 |
Valuation of deferred tax assets |  |  | 5,802 |  |  |  | - |  |  |  | - |  |  |  | (778 | ) |  | $ | 5,024 |
Year ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 4,805 |  |  | $ | 1,941 |  |  | $ | (2,123 | ) |  | $ | 250 |  |  | $ | 4,873 |
Reserves for inventory |  |  | 15,987 |  |  |  | 10,004 |  |  |  | (3,720 | ) |  |  | 869 |  |  |  | 23,140 |
Valuation of deferred tax assets |  |  | 6,817 |  |  |  | 478 |  |  |  | - |  |  |  | (1,493 | ) |  |  | 5,802 |
Year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 5,642 |  |  | $ | 346 |  |  | $ | (1,842 | ) |  | $ | 659 |  |  | $ | 4,805 |
Reserves for inventory |  |  | 13,031 |  |  |  | 6,164 |  |  |  | (4,036 | ) |  |  | 828 |  |  |  | 15,987 |
Valuation of deferred tax assets |  |  | 4,362 |  |  |  | 2,455 |  |  |  | - |  |  |  | - |  |  |  | 6,817 |
| (1) | Deductions from the allowance for doubtful accounts equal accounts receivable written off against the allowance, less recoveries. Deductions from the reserves for inventory excess and obsolete items equal inventory written off against the reserve as items were disposed of.

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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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