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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] | Schedule II – Valuation an d Qualifying Accounts
|  | Beginning Balance |  |  | Charged to cost and expenses |  |  | Deductions (1) (2) |  |  | Ending Balance |
Deferred Tax Asset Valuation Allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 |  | $ | - |  |  | $ | 576 |  |  | $ | - |  |  | $ | 576 |
2015 |  |  | 15,572 |  |  |  | 368 |  |  |  | (15,940 | ) |  |  | - |
2014 |  |  | 20,987 |  |  |  | - |  |  |  | (5,415 | ) |  |  | 15,572 |
Receivables Allowance for Doubtful Accounts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 |  | $ | 3,044 |  |  | $ | 1,972 |  |  | $ | (1,431 | ) |  | $ | 3,585 |
2015 |  |  | 3,248 |  |  |  | 19 |  |  |  | (223 | ) |  |  | 3,044 |
2014 |  |  | 1,889 |  |  |  | 1,432 |  |  |  | (73 | ) |  |  | 3,248 |
(1) Deductions from deferred tax asset valuation allowance represent re versals of previously established allowances
(2) Deductions from the receivables allowance for doubtful accounts represent uncollectible accounts written off and recoveries

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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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