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Share-based Payments - Stock Options Activity (Details) - Stock Options [Member] - USD ($)	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Black-Scholes option pricing model assumptions used to derive weighted average fair value of stock options granted [Abstract]
Weighted average risk free interest rate	0.00%	2.82%
Weighted average expected holding period	0 years	5 years 11 months 12 days
Weighted average expected volatility	0.00%	43.98%
Weighted average expected dividend yield	0.00%	0.00%
Weighted average fair value of options granted (in dollars per share)	$ 0	$ 8.70
Number of Shares [Roll Forward]
Outstanding at beginning of period (in shares)	1,337,165
Granted (in shares)	0	241,800
Exercised (in shares)	0
Forfeited (in shares)	(1,000)
Outstanding at end of period (in shares)	1,336,165
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of period (in dollars per share)	$ 17.58
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	19.00
Outstanding at end of period (in dollars per share)	$ 17.58
Number of stock options unvested (in shares)	230,921
Weighted average exercise price of stock options unvested (in dollars per share)	$ 21.22
Total unrecognized compensation expense	$ 2,144,000
Weighted average vesting period over which compensation expense is expected to be recognized	1 year 8 months 12 days

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Weighted average exercise price of non-vested options outstanding.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Weighted average price of options that were either forfeited or expired.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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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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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Expected term of 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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