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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | AVALON HOLDINGS CORPORATION AND SUBSIDIARIES SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED DECEMBER 31, 201 6 AND 201 5 (in thousands )
|  |  |  |  |  | Additions |  |  |  |  |  |  |  |  |
DESCRIPTION |  | Balance at Beginning of Year |  |  | Charged (Credited) to Costs and Expenses |  |  | Charged to Other Accounts |  |  | Deductions / (Recoveries) |  |  | Balance at End of Year |
Year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 235 |  |  | $ | 115 |  |  | $ | - |  |  | $ | 115 | (1) |  | $ | 235 |
Deferred tax asset valuation allowance |  | $ | 1,651 |  |  | $ | (198 | ) (2) |  | $ | - |  |  | $ | - |  |  | $ | 1,453 |
Year ended December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 168 |  |  | $ | 85 |  |  | $ | - |  |  | $ | 18 | (1) |  | $ | 235 |
Deferred tax asset valuation allowance |  | $ | 1,418 |  |  | $ | 233 | (2) |  | $ | - |  |  | $ | - |  |  | $ | 1,651 |
(1) Accounts receivable written-off as uncollectible, net of recoveries.
(2) Change in valuation allowance primarily for deferred tax assets when it is more likely than not that the deferred tax assets will not be realized.

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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 -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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