Income Taxes (Components of Provision (Benefit)) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Current:
Domestic Federal									$ (320,000)	$ 370,000	$ (150,000)
Foreign									500,000	530,000	800,000
Foreign withholding taxes									1,240,000	0	0
Domestic state									0	80,000	(110,000)
Total current									1,420,000	980,000	540,000
Deferred:
Domestic Federal									720,000	(490,000)	(290,000)
Foreign									(210,000)	750,000	1,610,000
Domestic state									(20,000)	0	0
Total deferred									490,000	260,000	1,320,000
Total provision	$ 1,270,000	$ 290,000	$ 170,000	$ 180,000	$ (645,000)	$ 1,325,000	$ 0	$ 560,000	$ 1,910,000	$ 1,240,000	$ 1,860,000