Supporting Financial Information - Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	$ 3,373	$ 3,286
Less: Allowance for doubtful accounts	0	0
Accounts Receivable, Net	3,373	3,286
Billed Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	2,336	2,498
Unbilled Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	$ 1,037	$ 788