v3.19.3

Note 10 - Stock Options - Stock Options by Exercise Price Range (Details) shares in Thousands | 6 Months Ended
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Jun. 30, 2019 $ / shares shares
Options Outstanding, weighted average exercise price (in dollars per share) | $ 24.95
Options Outstanding, number of options (in shares) | shares | 748
Options Exercisable, weighted average exercise price (in dollars per share) | $ 24.95
Options Exercisable, weighted average remaining life in years (Year) | 5 years 255 days
Options exercisable, number of options exercisable (in shares) | shares | 530
Price Range 1 [Member] |
Range of Exercise Price, lower (in dollars per share) | $ 1.11
Range of Exercise Price, upper (in dollars per share) | 1.38
Options Outstanding, weighted average exercise price (in dollars per share) | $ 1.11
Options Outstanding, number of options (in shares) | shares | 73
Options Exercisable, weighted average exercise price (in dollars per share) | $ 1.11
Options Exercisable, weighted average remaining life in years (Year) | 2 years 182 days
Options exercisable, number of options exercisable (in shares) | shares | 73
Price Range 2 [Member] |
Range of Exercise Price, lower (in dollars per share) | $ 1.39
Range of Exercise Price, upper (in dollars per share) | 3.05
Options Outstanding, weighted average exercise price (in dollars per share) | $ 1.39
Options Outstanding, number of options (in shares) | shares | 37
Options Exercisable, weighted average exercise price (in dollars per share) | $ 1.39
Options Exercisable, weighted average remaining life in years (Year) | 3 years 73 days
Options exercisable, number of options exercisable (in shares) | shares | 37
Price Range 3 [Member] |
Range of Exercise Price, lower (in dollars per share) | $ 3.06
Range of Exercise Price, upper (in dollars per share) | 20.99
Options Outstanding, weighted average exercise price (in dollars per share) | $ 3.06
Options Outstanding, number of options (in shares) | shares | 580
Options Exercisable, weighted average exercise price (in dollars per share) | $ 3.06
Options Exercisable, weighted average remaining life in years (Year) | 7 years 182 days
Options exercisable, number of options exercisable (in shares) | shares | 362
Price Range 4 [Member] |
Range of Exercise Price, lower (in dollars per share) | $ 21.00
Range of Exercise Price, upper (in dollars per share) | 656.40
Options Outstanding, weighted average exercise price (in dollars per share) | $ 289.81
Options Outstanding, number of options (in shares) | shares | 58
Options Exercisable, weighted average exercise price (in dollars per share) | $ 289.81
Options Exercisable, weighted average remaining life in years (Year) | 255 days
Options exercisable, number of options exercisable (in shares) | shares | 58

X
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + 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 (c)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + 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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + 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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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