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CAPITAL TRANSACTIONS Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Time-based stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation expense | $ 200 | $ 800 | $ 1,600 |
Unrecognized share-based compensation expense, options | $ 13 | $ 300 | $ 1,100 |
Weighted-average period over which the remaining compensation cost is expected to be recognized | 2 months |  |  |
Time-based stock options | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period | 48 months |  |  |
Stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) | 25,000 | 0 | 335,000 |
Granted (in dollars per share) | $ 13.50 | $ 0.00 | $ 14.04 |
Weighted-average grant date fair value (in dollars per share) | $ 4.94 | $ 4.79 |  |
Aggregate intrinsic values of options exercised | $ 17 | $ 200 | $ 1,400 |
Related tax benefit | $ 17 | $ 100 | $ 500 |
Outstanding options to purchase (in shares) | 1,390,000 | 1,524,000 | 1,683,000 | 2,037,000
Exercisable (in shares) | 1,293,000 | 1,201,000 |  |
Expected to vest (in shares) | 92,000 | 306,000 |  |
Aggregate Intrinsic value, outstanding | $ 900 | $ 4,200 |  |
Aggregate Intrinsic value, exercisable | 900 | 3,700 |  |
Aggregate Intrinsic value, expected to vest | $ 0 | $ 386 |  |
Performance based stock options operating income margins |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Operating income margin, one (as a percent) | 6.00% |  |  |
Operating income margin, two (as a percent) | 8.00% |  |  |
Operating income margin, three (as a percent) | 10.00% |  |  |
2012 Stock Incentive Plan | Time-based stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) | 25,000 |  |  |
2012 Stock Incentive Plan | Time-based stock options and net sales revenue performance-based stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in dollars per share) | $ 13.50 |  |  |
Termination period | 10 years |  |  |
2012 Stock Incentive Plan | Stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) | 17,000 | 35,000 | 405,000 |
Granted (in dollars per share) | $ 12.06 | $ 4.74 | $ 9.78 |
2009 Incentive Plan | Time-based stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in shares) |  |  | 335,000 |
2009 Incentive Plan | Time-based stock options and net sales revenue performance-based stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted (in dollars per share) |  |  | $ 14.04 |
Weighted-average grant date fair value (in dollars per share) |  |  | $ 4.79 |
Termination period |  |  | 10 years |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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