Represents the number of shareholder approved plans under which shares were available for equity based awards.

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Represents the weighted average grant-date fair value of options granted during the reporting period.

+ References

No definition available.

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The maximum number of shares (or other type of equity) originally approved to be issued in connection with performance awards and stock awards (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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No definition available.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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

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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

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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- Definition

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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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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Price of a single share of a number of saleable stocks of a company.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Note 10 - Share-based Compensation (Details Textual)		12 Months Ended
Note 10 - Share-based Compensation (Details Textual)	Apr. 05, 2020 $ / shares shares	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares	Mar. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2017 $ / shares	Aug. 25, 2016 shares	Aug. 28, 2014 shares
Number of Shareholder Approved Share-based Compensation Plans		2
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		1,367,815
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		1,650,000
Share Price (in dollars per share) \| $ / shares		$ 2.06	$ 3.24	$ 5.10	$ 3.85
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value \| $		$ 1,000	$ 77,000	$ 67,000
ShareBased Compensation Arrangement By Share Based Payment Award Weighted Average Grant Date Fair Value Options Granted \| $		5,000	76,000	67,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value \| $		169,000	72,000	57,000
Former Executive [Member]
Share-based Payment Arrangement, Expense \| $		205,000
Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Expense \| $		133,000	77,000	62,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total \| $		$ 52,000	$ 180,400
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		2 years 292 days	2 years 109 days
Share-based Payment Arrangement, Option [Member] \| Former Executive [Member]
Share-based Payment Arrangement, Expense \| $		$ 109,000
Restricted Stock [Member] \| Non-employee Directors [Member]
Share-based Payment Arrangement, Expense \| $		$ 158,000	$ 170,000	$ 276,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		74,882	47,223	57,501
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		4,051	23,923	28,074
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares		$ 2.67	$ 4.10	$ 3.92
Restricted Stock Units (RSUs) [Member] \| Former Executive [Member]
Share-based Payment Arrangement, Expense \| $		$ 6,000
Restricted Stock Units (RSUs) [Member] \| Employees [Member]
Share-based Payment Arrangement, Expense \| $		81,000	$ 75,000	$ 62,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total \| $		$ 18,000	$ 108,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		1 year 109 days	1 year 182 days
Restricted Stock Units (RSUs) [Member] \| Employees [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	9,400
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares	$ 2.07
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Maximum [Member] \| Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		10 years
The 2005 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)						1,300,000
The 2005 Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized for Issuance in Connection with Performance Awards and Stock Awards (in shares)						600,000
The 2016 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		1,183,415
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		1,300,000
2014 Directors Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		184,400
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		350,000					350,000
2004 Directors Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)