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Share-based Payments - Restricted Stock Units (Details) - Restricted Stock [Member] - USD ($)	6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Number of Shares [Roll Forward]
Non-vested at beginning of period (in shares)	354,484
Granted (in shares)	218,928	212,293
Vested (in shares)	(184,434)
Forfeited (in shares)	(1,442)
Non-vested at end of period (in shares)	387,536
Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested at beginning of period (in dollars per share)	$ 17.22
Granted (in dollars per share)	22.27
Vested (in dollars per share)	17.84
Forfeited (in dollars per share)	19.57
Non-vested at end of period (in dollars per share)	$ 19.76
Total unrecognized compensation expense	$ 5,411,000
Weighted average remaining vesting period over which compensation expense is expected to be recognized	1 year 10 months 24 days

X

- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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