Basis of Presentation - Shipping Expense (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Shipping expenses	$ 400,000	$ 200,000	$ 0.7	$ 0.5