XML 81 R62.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes (Details Textual) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Operating Loss Carryforwards [Line Items]        
Liability relating to unrecognized tax benefits $ 570 $ 545 $ 494 $ 458
Federal        
Operating Loss Carryforwards [Line Items]        
Tax NOL carryforwards 239,308 244,214    
Income tax deductions in excess of tax benefits related to stock compensation 42,097      
Research and development credit carryforwards 4,137 4,078    
State        
Operating Loss Carryforwards [Line Items]        
Research and development credit carryforwards $ 1,560 $ 1,370