Industry Segments And Financial Information About Foreign And Domestic Operations (Details) (USD $)	12 Months Ended
	Sep. 30, 2014 segment		Sep. 30, 2013		Sep. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments	1
Net Revenues to External Customers	$ 24,491,000		$ 31,457,000		$ 35,034,000
Long-Lived Asset	1,768,000		2,233,000
South Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers	2,928,000	[1]	5,421,000	[1]	6,834,000	[1]
Angola [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers	2,477,000	[1]		[2]		[2]
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers	2,381,000		2,611,000		2,423,000
Long-Lived Asset	88,000		154,000
DR of Congo [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers	2,185,000		2,467,000			[2]
Zimbabwe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers	2,064,000			[2]		[2]
Tanzania [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers	1,936,000			[2]		[2]
Nigeria [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers		[2]	2,879,000			[2]
Uganda [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers		[2]	2,997,000			[2]
Brazil [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers		[2]	4,480,000	[1]	6,720,000	[1]
U.K. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers		[2]		[2]		[2]
Long-Lived Asset	152,000		181,000
Malaysia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers		[2]		[2]		[2]
Long-Lived Asset	1,528,000		1,853,000
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenues to External Customers	10,520,000		10,602,000		19,057,000
Long-Lived Asset			$ 45,000

[1] Exceeds 10 percent of total net revenues.

[2] Less than 5 percent of total net revenues.