Acquisitions (Tables)

12 Months Ended

Mar. 31, 2018

Business Acquisition [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

	March 31,
	2018		2017
Net sales	$	839,419	$	777,847
Net income	$	22,065	$	20,699
Net income per share - Basic	$	0.97	$	0.92
Net income per share - Diluted	$	0.95	$	0.91

Ergomatic [Member]

Business Acquisition [Line Items]

Schedule of Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

Working capital	$	212
Property, plant, and equipment	246
Intangible assets	717
Total purchase consideration	$	1,175

STAHL [Member]

Business Acquisition [Line Items]

Schedule of Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

Cash	$	30,473
Working capital	18,593
Property, plant, and equipment	14,234
Intangible assets	143,039
Other assets	233
Other liabilities	(75,162		)
Deferred taxes, net	(33,550		)
Goodwill	150,386
Total	$	248,246