Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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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 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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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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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of non-vested options outstanding.

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Number of share options (or share units) exercised during the current period.

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Stock-based Compensation Schedule of Non-Vested Restricted Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2015
Restricted Stock [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,293,000		1,293,000		1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 3.93		$ 3.93		$ 4.57
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			420,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 2.64
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period			(124,000)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value			$ 4.74
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			(3,000)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value			$ 4.00
Restricted Stock [Member] \| Share-based Compensation Award, Tranche One [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	35,000		35,000
Restricted Stock [Member] \| Share-based Compensation Award, Tranche Two [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	40,000		40,000
Restricted Stock [Member] \| Share-based Compensation Award, Tranche Three [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	175,000		175,000
Assumed conversion of employee stock grants
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period				6,000
Allocated Share-based Compensation Expense	$ 55	$ 152	$ 132	$ 379
Restricted Stock [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	518	87	1,019	288
Deferred Compensation, Share-based Payments [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	$ 755	719	$ 1,456	1,285
Director [Member] \| Restricted Stock [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			70,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 2.22
Director [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche One [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	33,000		33,000
Director [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche Two [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	33,000		33,000
Director [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche Three [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	34,000		34,000
Chief Executive Officer [Member] \| Restricted Stock [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			250,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 2.92
Management [Member] \| Restricted Stock [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			100,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 2.22
Cost of Sales [Member] \| Assumed conversion of employee stock grants
Stock-based Compensation
Allocated Share-based Compensation Expense	$ 28	61	$ 61	169
Cost of Sales [Member] \| Restricted Stock [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	163	21	315	44
Cost of Sales [Member] \| Deferred Compensation, Share-based Payments [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	268	277	496	492
Selling, General and Administrative Expenses [Member] \| Assumed conversion of employee stock grants
Stock-based Compensation
Allocated Share-based Compensation Expense	26	86	68	201
Selling, General and Administrative Expenses [Member] \| Restricted Stock [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	350	66	693	244
Selling, General and Administrative Expenses [Member] \| Deferred Compensation, Share-based Payments [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	433	343	891	632
Research and Development Expense [Member] \| Assumed conversion of employee stock grants
Stock-based Compensation
Allocated Share-based Compensation Expense	1	5	3	9
Research and Development Expense [Member] \| Restricted Stock [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	5		11	0
Research and Development Expense [Member] \| Deferred Compensation, Share-based Payments [Member]
Stock-based Compensation
Allocated Share-based Compensation Expense	$ 54	$ 99	$ 69	$ 161