XML 89 R75.htm IDEA: XBRL DOCUMENT v3.3.1.900
Income Taxes - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 28, 2015
Mar. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Line Items]                
Tax benefit recognized     $ 0 $ 0        
Recognized tax benefit, voluntary disclosure agreements with several states     555,000          
Unremitted earnings reversed     $ 274,000          
Benefit for income taxes   $ 552,000            
Research tax credit carry forward extension period     2 years          
Federal research tax credit recorded             $ 549,000  
Unremitted earnings of international subsidiaries     $ 841,000          
Unrecognized deferred tax liability     37,000          
Gain from equity method investment     5,000,000          
Valuation allowance, deferred tax assets     25,862,000 25,818,000        
Deferred tax assets valuation allowance increase         $ 10,241,000      
Amount generated in cash refund       1,600,000        
Increases in equity of realization of deferred tax assets     3,216,000          
Accrued interest     830,000 1,254,000 2,072,000     $ 1,506,000
Net interest (benefit) expense     21,000 32,000 $ (28,000)      
Potential payment of interest     $ 24,000 $ 181,000        
Great Wall Semiconductor Corporation (GWS) [Member]                
Income Tax Disclosure [Line Items]                
Gain from equity method investment $ 4,999,719              
Gain from equity method investment for income tax purpose 4,999,719              
Gain (loss) on transaction for income tax purpose $ 0              
Aegis Power Systems Inc [Member]                
Income Tax Disclosure [Line Items]                
Sale of ownership interest     49.00%     49.00%    
Minimum [Member]                
Income Tax Disclosure [Line Items]                
Income tax examination period     3 years          
Maximum [Member]                
Income Tax Disclosure [Line Items]                
Income tax examination period     7 years          
Domestic Tax Authority [Member]                
Income Tax Disclosure [Line Items]                
Federal net operating loss carryforwards expiry, beginning year     2033          
Certain States [Member]                
Income Tax Disclosure [Line Items]                
Federal net operating loss carryforwards expiry, beginning year     2016          
Federal net operating loss carryforwards expiry, ending year     2035