The number of shares that can be granted upon exercise of underwriter options.

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- Definition

Represents the impact of share-based compensation in basic earning per share computations.

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Represents the impact of share-based compensation in diluted earning per share computations.

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No definition available.

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Represents the cumulative effect of adjustment for share based compensation for equity instrument other than option.

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No definition available.

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- Definition

Represents the cumulative effect of adjustment for share based compensation for equity instrument other than option net of tax.

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No definition available.

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- Definition

The percentage of shares will be issued upon vesting.

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No definition available.

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Represents the percentage of financial performance target for share based compensation vest requirement.

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No definition available.

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- Definition

Represents the expected increase (decrease) non-cash share based compensation expense during each quarter.

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No definition available.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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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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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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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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Per share or per unit amount of equity securities issued.

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No definition available.

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Number of new stock issued during the period.

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Note 7 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Aug. 12, 2019	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Stock Issued During Period, Shares, New Issues	431,250
Sale of Stock, Underwriter Options, Shares	56,250
Shares Issued, Price Per Share	$ 210
Proceeds from Issuance of Common Stock	$ 84,995			$ 84,995
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		8		28,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value				$ 213.33
Performance Stock Units [Member]
Share Based Compensation Effect on Earning per Share Basic				0.38
Share Based Compensation Effect on Earning per Share Diluted				$ 0.35
Share-based Payment Arrangement, Expected Noncash Expense, Increased (Decrease) Per Quarter				$ 533
Performance Stock Units [Member] \| General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Cumulative Effect of Adjustment, Vested in Period				2,066
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Cumulative Effect of Adjustment, Vested in Period, Net of Tax				$ 1,561
Performance Stock Units [Member] \| GPT Acquisition [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Vest Requirement, Percentage of Finance Performance Target		90.00%
Performance Stock Units [Member] \| GPT Acquisition [Member] \| Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		4
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 240.35
Performance Stock Units [Member] \| GPT Acquisition [Member] \| Key Employees [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award Number of Shares Issued Upon Vesting, Percentage		0.00%
Performance Stock Units [Member] \| GPT Acquisition [Member] \| Key Employees [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award Number of Shares Issued Upon Vesting, Percentage		150.00%
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			8
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 202
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Performance Shares [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award Number of Shares Issued Upon Vesting, Percentage			0.00%
Performance Shares [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award Number of Shares Issued Upon Vesting, Percentage			200.00%