Note 15 - Industry Segment Information (Details) - Industry Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$ 172,243	$ 168,629	$ 355,816	$ 352,015
Income from operations	15,274	16,268	29,159	33,894
Interest expense	(592)	(575)	(1,152)	(1,226)
Other non-operating income	66	166	520	130
Income from continuing operations before income taxes	14,748	15,859	28,527	32,798
Restructuring costs	(644)	(985)	(4,450)	(1,220)
Other operating income (expense), net	1,962		1,962
Food Service Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales	93,073	95,816	198,417	205,139
Income from operations	7,430	9,694	16,220	23,042
Restructuring costs	(724)	(150)	(4,070)	(150)
Engraving Group [Member]
Segment Reporting Information [Line Items]
Net sales	28,384	23,663	53,411	47,019
Income from operations	5,820	4,476	10,593	9,028
Restructuring costs	107	(823)	(145)	(1,058)
Engineering Technologies Group [Member]
Segment Reporting Information [Line Items]
Net sales	17,323	18,027	34,588	33,757
Income from operations	2,456	3,644	4,538	5,337
Electronics Products Group [Member]
Segment Reporting Information [Line Items]
Net sales	26,461	24,894	54,605	52,733
Income from operations	4,392	4,101	9,530	7,189
Restructuring costs	(27)	(12)	(235)	(12)
Hydraulics Products Group [Member]
Segment Reporting Information [Line Items]
Net sales	7,002	6,229	14,795	13,367
Income from operations	1,059	963	2,233	1,934
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Income from operations	$ (7,201)	$ (5,625)	$ (11,467)	$ (11,416)