Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.19.1
Summary of Significant Accounting Policies (Details Textual)
 3 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
Mar. 31, 2019
USD ($)
a
Mar. 31, 2018
USD ($)
Apr. 01, 2019
USD ($)
Sep. 30, 2018
USD ($)
Apr. 01, 2018
USD ($)
Apr. 07, 2015
a
Apr. 02, 2013
a
Property, Plant and Equipment [Line Items]                
Contract with Customer, Liability, Revenue Recognized   $ 1,700,000            
ContractWithCustomerProductReturnAsset   200,000       $ 100,000    
Cash, FDIC Insured Amount   250,000            
Depreciation   $ 600,000 $ 800,000          
Area of Real Estate Property | a               16
Proceeds from Sale of Property Held-for-sale $ 264,000              
Capitalized Contract Cost, Net         $ 0      
Minimum [Member]                
Property, Plant and Equipment [Line Items]                
Operating Lease, Liability       $ 1,100,000        
Operating Lease, Right-of-Use Asset       1,100,000        
Maximum [Member]                
Property, Plant and Equipment [Line Items]                
Operating Lease, Liability       1,400,000        
Operating Lease, Right-of-Use Asset       $ 1,400,000        
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            
Accounting Standards Update 2014-09 [Member]                
Property, Plant and Equipment [Line Items]                
Cumulative Effect on Retained Earnings, Net of Tax [1]   $ 329,000            
Accounting Standards Update 2014-09 [Member] | Accumulated Deficit [Member]                
Property, Plant and Equipment [Line Items]                
Cumulative Effect on Retained Earnings, Net of Tax [1]   $ 329,000            
[1] Includes the cumulative effect adjustment of the ASC 606 adoption.