Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.8.0.1
Summary of Significant Accounting Policies (Details Textual)
 3 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
Mar. 31, 2018
USD ($)
a
Mar. 31, 2017
USD ($)
Apr. 01, 2018
USD ($)
Apr. 07, 2015
a
Apr. 02, 2013
a
Property, Plant and Equipment [Line Items]            
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets       $ 300,000    
Cash, FDIC Insured Amount   $ 250,000        
Depreciation   800,000 $ 1,400,000      
Area of Real Estate Property | a           16
Proceeds from Sale of Property Held-for-sale $ 264,000          
Impairment of Long-Lived Assets to be Disposed of   $ 0 $ 1,181,000      
Machinery and Equipment [Member] | Minimum [Member]            
Property, Plant and Equipment [Line Items]            
Property, Plant and Equipment, Useful Life   5 years        
Machinery and Equipment [Member] | Maximum [Member]            
Property, Plant and Equipment [Line Items]            
Property, Plant and Equipment, Useful Life   7 years        
Land available-for-sale [Member]            
Property, Plant and Equipment [Line Items]            
Area of Real Estate Property | a         4  
Land [Member]            
Property, Plant and Equipment [Line Items]            
Area of Real Estate Property | a   12        
3570 Computer and office Equipment [Member] | Minimum [Member]            
Property, Plant and Equipment [Line Items]            
Property, Plant and Equipment, Useful Life   2 years        
3570 Computer and office Equipment [Member] | Maximum [Member]            
Property, Plant and Equipment [Line Items]            
Property, Plant and Equipment, Useful Life   5 years