Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2018

Summary of Significant Accounting Policies

Summary of intangible assets

	Gross		Accumulated		Carrying
September 30, 2017	Amount		Amortization		Amount
Patents	$	4,030	$	(3,656)	$	374
Trademarks		3,800		—		3,800
Customer relationships		2,100		(426)		1,674
Other		291		(73)		218
	$	10,221	$	(4,155)	$	6,066

	Gross		Accumulated		Carrying
September 30, 2018	Amount		Amortization		Amount
Patents	$	4,030	$	(3,977)	$	53
Trademarks		3,800		—		3,800
Customer relationships		2,100		(574)		1,526
Other		291		(131)		160
	$	10,221	$	(4,682)	$	5,539

Schedule of estimated future aggregate amortization expense

Estimated future Aggregate Amortization Expense:
Year Ended September 30,
2019	$	255
2020		199
2021		179
2022		133
2023		129
Thereafter		844

Schedule of estimated economic useful lives of property, plant and equipment

Buildings and improvements			40	years
Machinery and equipment	5	—	14	years
Land improvements			20	years

Schedule of basic and diluted net income per share

	Years ended September 30,
(in thousands, except share and per share data)	2016			2017			2018
Numerator: Basic and Diluted
Net income (loss)	$	5,020		$	(10,190)		$	(21,751)
Dividends		(10,988)			(11,009)			(11,027)
Undistributed income (loss)		(5,968)			(21,199)			(32,778)
Percentage allocated to common shares (a)		99.0	%		100.0	%		100.0	%
Undistributed income (loss) allocated to common shares		(5,910)			(21,199)			(32,778)
Dividends paid on common shares outstanding		10,881			10,905			10,933
Net income (loss) available to common shares		4,971			(10,294)			(21,845)
Denominator: Basic and Diluted
Weighted average common shares outstanding		12,361,483			12,397,099			12,419,564
Adjustment for dilutive potential common shares		4,714			—			—
Weighted average shares outstanding - Diluted		12,366,197			12,397,099			12,419,564
Basic net income (loss) per share	$	0.40		$	(0.83)		$	(1.75)
Diluted net income (loss) per share	$	0.40		$	(0.83)		$	(1.75)
Number of stock option shares excluded as their effect would be anti-dilutive		378,852			310,417			329,276
Number of restricted stock shares excluded as their effect would be anti-dilutive		121,285			107,854			91,008
(a) Percentage allocated to common shares - weighted average
Common shares outstanding		12,361,483			12,397,099			12,419,564
Unvested participating shares		121,185			—			—
		12,482,668			12,397,099			12,419,564