Class of Warrant or Right, Expiration Term After Annual Meeting

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- Definition

Class of Warrant or Rights, Number of Warrants Issued Per Share

+ References

No definition available.

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- Definition

Minimum percentage of ownership of common stock required to exercise preferred share.

+ References

No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award average reduction in number of shares available for grant per award.

+ References

No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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-Paragraph 28
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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Publisher FASB
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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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-Publisher FASB
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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.

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-Publisher FASB
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Gross value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Stock and Stock Options - Additional Information (Details) - USD ($)		3 Months Ended				12 Months Ended
	Jun. 08, 2000	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of preferred stock purchase rights issued per common share (in shares)	1
Number of shares which preferred stock purchase rights are convertible into (in shares)						0.001
Preferred stock purchase rights at exercise price ( in usd per share)						$ 65
Percentage of outstanding shares of common stock to exercise preferred stock purchase rights						20.00%
Preferred stock purchase rights expiration term after 2021 annual meeting						30 days
Stock-based compensation expense						$ 3,027,000	$ 4,032,000
Total unrecognized compensation costs						$ 1,700,000
Weighted average period						2 years 7 months 6 days
Reduction of shares available for grant						1.22
Total intrinsic value of options and non-plan Options exercised						$ 30,000	300,000
Board of Directors Chairman
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period (in shares)		$ 25,000	$ 30,000	$ 30,000	$ 30,000	30,000
Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense						$ 3,000,000	$ 4,000,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options and stock option plans vesting terms period						3 years
Stock options exercised within period						10 years
Service-Based Restricted Stock and Restricted Stock Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value per share of performance shares granted (in usd per share)						$ 3.98
Grants in period (in shares)						143,719
Service-Based Restricted Stock and Restricted Stock Unit Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options and stock option plans vesting terms period						2 years
Service-Based Restricted Stock and Restricted Stock Unit Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options and stock option plans vesting terms period						4 years
Performance-Based Restricted Stock and Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value per share of performance shares granted (in usd per share)						$ 2.41
Grants in period (in shares)						169,781
Performance-Based Restricted Stock and Unit Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options and stock option plans vesting terms period						3 years
Performance-Based Restricted Stock and Unit Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options and stock option plans vesting terms period						4 years
Market-Based Restricted Stock and Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value per share of performance shares granted (in usd per share)						$ 0.00
Grants in period (in shares)						0
Market-Based Restricted Stock and Unit Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options and stock option plans vesting terms period						3 years
Market-Based Restricted Stock and Unit Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options and stock option plans vesting terms period						4 years
Employee Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding stock options authorized for issuance (in shares)						6,942,340
Future grants under the stock option plans (in shares)						639,685
Reduction of shares available for grant						1
Weighted average fair value per share of options granted						$ 1.33	$ 2.96
Employee Plan \| Restricted Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value per share of performance shares granted (in usd per share)						$ 3.13	$ 8.53
Total fair value of performance shares vested						$ 1,300,000	$ 2,000,000