Represents percentage of automatic increase in the amount of shares available for issuance.

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- Definition

Period of restriction of forfeiture.

+ References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

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

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- 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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- Definition

Amount of noncash expense for share-based payment arrangement.

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Note 8 - Restricted Stock (Details Textual) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2012	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017	Jul. 28, 2006
Percentage of Automatic Increase in Shares Available for Issuance			10.00%
Share-based Payment Arrangement, Noncash Expense, Total				$ 3,097	$ 2,575	$ 1,935
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance				150,000	193,000
2006 Employee Equity Compensation Restricted Stock Plan (the "Employee Plan") \| Restricted Stock [Member]
Common Stock, Capital Shares Reserved for Future Issuance				972,175			1,000,000
2006 Outside Director Equity Compensation Restricted Stock Plan (the "Director Plan") [Member] \| Restricted Stock [Member]
Common Stock, Capital Shares Reserved for Future Issuance			400,000	272,000			200,000
2015 Outside Director Equity Compensation Restricted Stock Plan [Member] \| Restricted Stock [Member]
Common Stock, Capital Shares Reserved for Future Issuance		400,000		97,500
Percentage of Automatic Increase in Shares Available for Issuance		10.00%
2016 Employee Equity Compensation Restricted Stock Plan [Member] \| Restricted Stock [Member]
Common Stock, Capital Shares Reserved for Future Issuance	1,000,000			85,183
2016 Employee Equity Compensation Restricted Stock Plan [Member] \| Restricted Stock [Member] \| Minimum [Member]
Restriction Period	1 year
2016 Employee Equity Compensation Restricted Stock Plan [Member] \| Restricted Stock [Member] \| Maximum [Member]
Restriction Period	10 years
Employee and Director Equity Compensation Plan [Member] \| Non-vested Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance				150,017	192,968
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total				72,899	75,081
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total				$ 3,900	$ 4,400
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				1 year 255 days	1 year 182 days