Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	$ 32,810	$ 33,039
Restricted cash, current	$ 136	$ 136
Location of current restricted cash	us-gaap:OtherAssetsCurrent	us-gaap:OtherAssetsCurrent
Restricted cash, noncurrent	$ 718	$ 820
Location of noncurrent restricted cash	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$ 33,664	$ 33,995