Note 18 - Industry Segment Information (Details) - Industry Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting Information [Line Items]
Net Sales	$ 183,275	$ 165,970	$ 168,629	$ 183,386	$ 169,800	$ 150,666	$ 154,868	$ 159,306	$ 701,260	$ 634,640	$ 581,369
Depreciation and Amortization									15,547	13,490	13,274
Goodwill	111,905				100,633				111,905	100,633	102,439
Identifiable Assets	510,573				479,811				510,573	479,811
Food Service Equipment Group [Member]
Segment Reporting Information [Line Items]
Net Sales									394,878	388,813	365,523
Depreciation and Amortization									5,242	5,342	5,832
Goodwill	45,790				45,793				45,790	45,793
Identifiable Assets	192,895				192,799				192,895	192,799
Engraving Group [Member]
Segment Reporting Information [Line Items]
Net Sales									93,380	93,611	85,258
Depreciation and Amortization									3,226	3,293	3,525
Goodwill	20,614				20,618				20,614	20,618
Identifiable Assets	88,064				94,738				88,064	94,738
Engineering Technologies Group [Member]
Segment Reporting Information [Line Items]
Net Sales									74,838	74,088	61,063
Depreciation and Amortization									3,288	3,188	1,951
Goodwill	10,861				11,206				10,861	11,206
Identifiable Assets	68,597				71,463				68,597	71,463
Electronics Products Group [Member]
Segment Reporting Information [Line Items]
Net Sales									108,085	48,206	46,600
Depreciation and Amortization									2,986	878	1,105
Goodwill	31,582				19,957				31,582	19,957
Identifiable Assets	94,369				43,285				94,369	43,285
Hydraulics Products Group [Member]
Segment Reporting Information [Line Items]
Net Sales									30,079	29,922	22,925
Depreciation and Amortization									566	518	530
Goodwill	3,058				3,059				3,058	3,059
Identifiable Assets	15,250				14,432				15,250	14,432
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Depreciation and Amortization									239	271	331
Identifiable Assets	$ 51,398				$ 63,094				$ 51,398	$ 63,094