Geographic Information (Narrative) (Details) - segment			3 Months Ended		6 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Number of business segments			1		2
Revenue [Member]
Segment Reporting Information [Line Items]
Concentration percentage			100.00%	100.00%
Major Customer, One [Member] | Revenue [Member]
Segment Reporting Information [Line Items]
Concentration percentage			17.00%	17.00%
Major Customer, One [Member] | Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Concentration percentage	16.00%	11.00%
Major Customer, Two [Member] | Revenue [Member]
Segment Reporting Information [Line Items]
Concentration percentage			14.00%	14.00%
Major Customer, Two [Member] | Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Concentration percentage	17.00%	11.00%
Australia [Member] | Revenue [Member]
Segment Reporting Information [Line Items]
Concentration percentage			17.00%	25.00%