Quarterly report pursuant to Section 13 or 15(d)

Industry Segments And Financial Information About Foreign And Domestic Operations (Narrative) (Details)

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Industry Segments And Financial Information About Foreign And Domestic Operations (Narrative) (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Mar. 31, 2016
USD ($)
segment
customer
Mar. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
customer
Revenues from External Customers and Long-Lived Assets [Line Items]          
Number of reportable segments | segment     1    
Net revenues to external customers $ 4,772,801 $ 10,977,467 $ 13,003,460 $ 17,636,673  
Long-Lived Asset 1,158,000   $ 1,158,000   $ 1,377,000
Sales Less Than Five Percent [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Concentration risk, percentage     5.00%    
Brazil [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net revenues to external customers     $ 6,008,000 9,955,000  
Zimbabwe [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net revenues to external customers     1,652,000 $ 2,113,000  
U.S. [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net revenues to external customers     1,293,000 [1]  
Long-Lived Asset 95,000   $ 95,000   123,000
South Africa [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net revenues to external customers     [1] $ 1,181,000  
Malaysia [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net revenues to external customers [1]      
Long-Lived Asset 957,000   $ 957,000   1,134,000
U.K. [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net revenues to external customers [1]      
Long-Lived Asset $ 106,000   $ 106,000   $ 120,000
Other Countries [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net revenues to external customers     $ 4,050,000 $ 4,388,000  
Customer One [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Number of Customers | customer     1   1
Customer One [Member] | Accounts Receivable [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Concentration risk, percentage     66.00%   46.00%
Single Customer [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Number of Customers | customer     0   0
Single Customer [Member] | Sales Exceeding Ten Percent [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Concentration risk, percentage     10.00%   10.00%
One Customer [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Number of Customers | customer     1    
One Customer [Member] | Sales Exceeding Ten Percent [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Concentration risk, percentage     10.00%    
Two Customers[Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Number of Customers | customer     2    
Two Customers[Member] | Sales Exceeding Ten Percent [Member]          
Revenues from External Customers and Long-Lived Assets [Line Items]          
Concentration risk, percentage     10.00%    
[1] * Less than 5 percent of total net revenues