Represents the percentage of performance conditions based on achievement in current fiscal year set as business target.

No definition available.

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- Definition

Represents the percentage of performance conditions based on company’s operating results in next fiscal year set as business target.

+ References

No definition available.

+ Details

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Balance Type:	debit
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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	instant

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ 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 (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

+ References

No definition available.

+ Details

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- Details

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Note 6 - Equity Incentive Plan (Details Textual) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
	Jun. 18, 2019	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Share-based Payment Arrangement, Expense		$ 1,311	$ 1,177		$ 4,140	$ 10,064
Stock Options, PSUs and RSUs to Employees and RSUs to Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					3 years
Performance Shares [Member]
Share-based Payment Arrangement, Expense		$ 300			$ 700
Performance Conditions, Business Target, Percentage of Performance Conditions Based on Achievement in Current Fiscal Year					30.00%
Performance Conditions, Financial Target, Percentage of Performance Conditions Based on Company’s Operating Results in next Fiscal Year					70.00%
The 2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	1,500,000
Common Stock, Capital Shares Reserved for Future Issuance	2,700,000						1,200,000
Chief Executive Officer [Member]
Share-based Payment Arrangement, Expense				$ 6,200