Geographic Information (Narrative) (Details) $ in Thousands			3 Months Ended		6 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2016 USD ($) segment	Mar. 31, 2015 USD ($)	Jun. 30, 2015 segment
Segment Reporting Information [Line Items]
Number of business segments | segment			1		2
Revenue			$ 18,882	$ 22,185
Major Customer, One [Member] | Revenue [Member]
Segment Reporting Information [Line Items]
Concentration percentage			17.00%	20.00%
Major Customer, One [Member] | Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Concentration percentage	15.00%	15.00%
Major Customer, Two [Member] | Revenue [Member]
Segment Reporting Information [Line Items]
Concentration percentage			14.00%	11.00%
Major Customer, Two [Member] | Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Concentration percentage	7.00%	5.00%
United States [Member]
Segment Reporting Information [Line Items]
Revenue			$ 9,041	$ 10,251
Concentration percentage			73.00%	67.00%
Australia [Member]
Segment Reporting Information [Line Items]
Concentration percentage			66.00%	68.00%