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Note 8 - Share-based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2018
Notes Tables |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Cost of sales |  | $ | - |  |  | $ | 70 |  |  | $ | 12 |  |  | $ | 221 |
Selling, general and administrative expense |  |  | - |  |  |  | 167 |  |  |  | 269 |  |  |  | 742 |
Total |  | $ | - |  |  | $ | 237 |  |  | $ | 281 |  |  | $ | 963 |
Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Options Outstanding |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Life |  |  | Aggregate Intrinsic Value |
|  |  |  |  |  |  |  |  |  | (in years) |  |  | (In thousands) |
Balance, December 31, 2017 |  |  | 24,000 |  |  | $ | 24.15 |  |  |  |  |  |  |  |  |
Options granted |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Options exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Options canceled |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Balance, September 30, 2018 |  |  | 24,000 |  |  |  | 24.15 |  |  |  |  |  |  |  |  |
Exercisable, September 30, 2018 |  |  | 24,000 |  |  |  | 24.15 |  |  |  | 1.50 |  |  | $ | - |
Schedule of Unvested Restricted Stock Units and Performance Share Awards Activity [Table Text Block] |
|  | Number of RSUs and PSAs (1) |  |  | Weighted- Average Grant Date Fair Value |
Unvested RSUs as of December 31, 2017 |  |  | 169,583 |  |  | $ | 9.50 |
PSAs granted |  |  | 43,077 |  |  |  | 19.97 |
Unvested PSAs canceled |  |  | (3,085 | ) |  |  | 19.97 |
RSUs vested |  |  | (169,583 | ) |  |  | 9.50 |
Unvested PSAs as of September 30, 2018 |  |  | 39,992 |  |  |  | 19.97 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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