Allocated share based compensation expense capitalized.

No definition available.

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- Definition

Options granted contractual term.

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Cumulative Annual Increments of Number of Shares

+ References

No definition available.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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

Amount of tax benefit from exercise of option under share-based payment arrangement.

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- 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.

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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

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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

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Net number of share options (or share units) granted during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

Amount of noncash expense for option under share-based payment arrangement.

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-Topic 230
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Stock-Based Compensation and Stock Awards - Stock Options - Additional Information (Details)		12 Months Ended
	May 13, 2004 shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares	May 12, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved (up to) (in shares) \| shares		57,625	132,375
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of stock options exercised \| $			$ 200,000	$ 700,000
Income tax benefit realized from stock options exercised \| $			$ 38,342	$ 157,442
Antidilutive securities (in shares) \| shares		108,992	185,000	6,000
Stock-based compensation expense for stock option exercises \| $		$ 0	$ 0	$ 0
Capitalized expense \| $		0	$ 0	$ 0
Unrecognized compensation expense related to share based compensation \| $		$ 0
2004 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cumulative annual increments of the total number of shares	0.25
Outstanding options, expiration date		Oct. 28, 2021
2004 Plan \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved (up to) (in shares) \| shares	2,696,294
Options granted period		10 years
Vesting period (in years)	4 years
2017 Plan \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved (up to) (in shares) \| shares					1,500,000
Granted (in shares) \| shares		0