Income Taxes (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 16, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Operating Loss Carryforwards [Line Items]
Valuation Allowance Deferred Tax Asset Change In Amount Increase Decrease Due To Exchange Rate Changes And Effect Of Unrealized Gains Losses		$ 12,521
Valuation Allowance Deferred Tax Asset Change In Amount Decrease Due To Expiration And Adjustment Of Domestic Net Operating Loss Carryforwards		316
Valuation Allowance Deferred Tax Asset Change In Amount Increase Decrease Due To Creation Of Deferred Tax Assets		414
Valuation Allowance Deferred Tax Asset Change In Amount Increase Due To Miscellaneous Adjustment Of Prior Year Deferred Tax Amounts		62
Deferred Tax Assets, Net, Noncurrent		924	$ 14,040
Deferred Tax Assets, Operating Loss Carryforwards, Total		89,937
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax		448
Deferred Tax Assets, Tax Credit Carryforwards, Research		140
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		89,937
Deferred Tax Assets, Valuation Allowance, Current		45,748	32,435
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		13,313
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		248
Unrecognized Tax Benefits, Interest on Income Taxes Expense		297	23
Unrecognized Tax Benefits, Interest on Income Taxes Accrued		281	258
Unrecognized Tax Benefits, Income Tax Penalties Accrued		88	$ 88
Unrecognized Benefits Resulting In Net Operating Loss Carryforward		11,189
Research And Development Credits		$ 140
Net Operating Loss On Inventory, percentage		47.00%
Operating Loss Carryforwards, Limitations on Use		From fiscal year 2010 to fiscal year 2013, approximately $38,959 of our federal NOLs expired. We have not had any additional expiration at the federal level in fiscal years 2014 through 2016 due to the extension of the carryforward period from 15 years to 20 years for losses incurred after fiscal 1998. We currently have approximately $41,970 of federal NOLs that will expire by fiscal year 2021, representing approximately 47% of our inventory of such losses.
Common Stock, Par or Stated Value Per Share		$ 0.01	$ 0.01
Tax Asset Preservation Plan [Member]
Operating Loss Carryforwards [Line Items]
Common Stock, Par or Stated Value Per Share	$ 0.01
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	4.90%
Preferred Stock, Redemption Price Per Share	$ 0.001
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Decrease Due To Release Of Valuation Allowance Deferred Tax Asset In State And Foreign Earnings				$ 214
Operating Loss Carryforwards		$ 28,208			$ 38,959
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Decrease Due To Release Of Valuation Allowance Deferred Tax Asset In State And Foreign Earnings				$ 13,699
Operating Loss Carryforwards		$ 51,346
Research and Development Expense [Member]
Operating Loss Carryforwards [Line Items]
Tax Carry Forward Period		20 years
2020 (Member) | Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date		Jun. 30, 2020
2021 (Member) | Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date		Jun. 30, 2021
Series B Preferred Stock [Member] | Tax Asset Preservation Plan [Member]
Operating Loss Carryforwards [Line Items]
Sale of Stock, Price Per Share	$ 30.00
Preferred Stock, Participation Rights	The Rights will not be exercisable until 10 days after the public announcement that a person or group has become an Acquiring Person by obtaining beneficial ownership of 4.9% or more of the outstanding Common Stock (or if already the beneficial owner of at least 4.9% of the outstanding Common Stock, by acquiring additional shares of Common Stock representing 0.001% or more of the shares of Common Stock then outstanding).