Related Party Transactions (Tables)

9 Months Ended

Jun. 30, 2017

Related Party Transactions [Abstract]

Schedule Of Related Party Transactions

	Three Months Ended June 30,				Nine Months Ended June 30,
(Dollars in Thousands)	2017		2016		2017		2016
Sales to Aquila	$	3,347	$	2,653	$	8,848	$	3,067
Purchases from Aquila		128		201		232		405

(Dollars in Thousands)	June 30, 2017		September 30, 2016
Amounts in accounts receivable	$	3,439	$	1,910
Amounts in accounts payable		193		320

	Three Months Ended June 30,				Nine Months Ended June 30,
(Dollars in Thousands)	2017		2016		2017		2016
Sales to Nagase	$	961	$	1,180	$	3,204	$	3,474
Purchases from Nagase		58		123		687		817

(Dollars in Thousands)	June 30, 2017		September 30, 2016
Amounts in accounts receivable	$	117	$	288
Amounts in accounts payable		5		23