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VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
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Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | ## 19. VALUATION AND QUALIFYING ACCOUNTS
|  | Deducted from Assets
|  | Doubtful Accounts |  | Returns and Allowances |  | Total
|  | (Dollars in thousands)
BALANCE, DECEMBER 31, 2014 |  | $ | 1,227 |  |  | $ | 1,157 |  |  | $ | 2,384 |
Add – Additions charged to earnings |  |  | 235 |  |  |  | 3,200 |  |  |  | 3,435 |
Deduct – Charges for purposes for which reserves were established |  |  | (286 | ) |  |  | (3,276 | ) |  |  | (3,562 | )
BALANCE, DECEMBER 31, 2015 |  | $ | 1,176 |  |  | $ | 1,081 |  |  | $ | 2,257 |
Add – Additions charged to earnings |  |  | 76 |  |  |  | 3,290 |  |  |  | 3,366 |
Deduct – Charges for purposes for which reserves were established |  |  | (90 | ) |  |  | (2,829 | ) |  |  | (2,919 | )
Deduct – Adjustment to reserve |  |  | (188 | ) |  |  | — |  |  |  | (188 | )
BALANCE, DECEMBER 31, 2016 |  | $ | 974 |  |  | $ | 1,542 |  |  | $ | 2,516 |
Add – Additions charged to earnings |  |  | 621 |  |  |  | 3,865 |  |  |  | 4,486 |
Deduct – Charges for purposes for which reserves were established |  |  | (624 | ) |  |  | (4,072 | ) |  |  | (4,696 | )
Deduct – Adjustment to reserve |  |  | (100 | ) |  |  | — |  |  |  | (100 | )
BALANCE, DECEMBER 31, 2017 |  | $ | 871 |  |  | $ | 1,335 |  |  | $ | 2,206 |

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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 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- References No definition available. + Details
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