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Schedule II - Valuation and Qualifying Accounts (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Summary of Valuation Allowance [Table Text Block] |
|  |  |  |  |  | Addition s |  |  |  |  |  |  |  |  |
Descriptio n |  | Balance at Beginning of Perio d |  |  | Charged to Costs and Expense s |  |  | Charged to Other Account s |  |  | Deduction s |  |  | Balance at End of Perio d |
Year Ended December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 1,348 |  |  | $ | 506 |  |  | $ | - |  |  | $ | (555 | ) |  | $ | 1,299 |
Tax valuation reserve |  | $ | 1,381 |  |  | $ | - |  |  | $ | - |  |  | $ | (351 | ) |  | $ | 1,030 |
Year Ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 1,299 |  |  | $ | 369 |  |  | $ | - |  |  | $ | (283 | ) |  | $ | 1,385 |
Tax valuation reserve |  | $ | 1,030 |  |  | $ | 987 |  |  | $ | - |  |  | $ | - |  |  | $ | 2,017 |
Year Ended December 31, 201 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful account s |  | $ | 1,385 |  |  | $ | 641 |  |  | $ | - |  |  | $ | (416 | ) |  | $ | 1,610 |
Tax valuation reserv e |  | $ | 2,017 |  |  | $ | 362 |  |  | $ | - |  |  | $ | - |  |  | $ | 2,379 |

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- Definition Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- References No definition available. + Details
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