Fair Value of Financial Instruments (Details) - Recurring basis - Level 1 - USD ($) $ in Thousands	Jun. 30, 2016	Sep. 30, 2015
Schedule of assets and liabilities measured at fair value
Money market funds included in cash and cash equivalents	$ 77,280	$ 33,241
Current portion of due from related parties related to share based payment awards	4,040	4,267
Long term portion of due from related parties related to share based payment awards	4,846	6,446
Current portion of accounts payable, accrued expenses and deposits related to share based payment awards	4,040	4,267
Long term portion of employer compensation liability related to share based payment awards	$ 4,846	$ 6,446