Pension and Retirement Plans (Tables)

9 Months Ended

Jun. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The fair value of the assets held by the U.K. pension plan by asset category are as follows:

	Fair Values as of
	June 30, 2017								September 30, 2016
	Fair Value Measurements Using Inputs Considered as								Fair Value Measurements Using Inputs Considered as
Asset Category	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
	(Amounts in thousands)
Cash on deposit	$	71	$	71	$	—	$	—	$	86	$	86	$	—	$	—
Pooled funds	7,817		—		7,817		—		7,543		—		7,543		—
Total plan assets	$	7,888	$	71	$	7,817	$	—	$	7,629	$	86	$	7,543	$	—

Schedule of Net Benefit Costs

The components of net periodic benefit costs related to the U.S. and international plans are as follows:

	For the Three Months Ended June 30,
	2017									2016
	Foreign			U.S.			Total			Foreign			U.S.			Total
	(Amounts in thousands)
Pension:
Service cost	$	10		$	—		$	10		$	9		$	—		$	9
Interest cost	97			11			108			146			11			157
Expected return on plan assets	(68		)	—			(68		)	(92		)	—			(92		)
Amortization of:
Prior service gain	—			—			—			—			—			—
Amortization of net gain (loss)	94			(1		)	93			44			(1		)	43
Net periodic benefit cost	$	133		$	10		$	143		$	107		$	10		$	117
Post Retirement:
Service cost	$	—		$	10		$	10		$	—		$	7		$	7
Interest cost	—			10			10			—			11			11
Amortization of net gain (loss)	—			4			4			—			(21		)	(21		)
Net periodic cost (benefit)	$	—		$	24		$	24		$	—		$	(3	)	$	(3	)
	For the Nine Months Ended June 30,
	2017									2016
	Foreign			U.S.			Total			Foreign			U.S.			Total
	(Amounts in thousands)
Pension:
Service cost	$	29		$	—		$	29		$	27		$	—		$	27
Interest cost	285			32			317			442			32			474
Expected return on plan assets	(198		)	—			(198		)	(281		)	—			(281		)
Amortization of:
Prior service gain	—			—			—			—			—			—
Amortization of net gain (loss)	276			(3		)	273			134			(3		)	131
Net periodic benefit cost	$	392		$	29		$	421		$	322		$	29		$	351
Post Retirement:
Service cost	$	—		$	29		$	29		$	—		$	20		$	20
Interest cost	—			33			33			—			32			32
Amortization of net gain (loss)	—			11			11			—			(60		)	(60		)
Net periodic cost (benefit)	$	—		$	73		$	73		$	—		$	(8	)	$	(8	)