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Note 18 - Industry Segment Information - Net Sales and Income (Loss) by Industry Segments (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Net sales $ 217,089 $ 184,715 $ 173,854 $ 179,600 $ 193,775 $ 177,465 $ 181,948 $ 198,398 $ 755,258 [1] $ 751,586 [1] $ 772,142 [1]
Depreciation and amortization                 20,315 17,953 16,684
Food Service Equipment Group [Member]                      
Net sales                 380,970 381,867 408,706
Depreciation and amortization                 5,206 5,030 5,176
Engraving Group [Member]                      
Net sales                 105,943 124,120 110,781
Depreciation and amortization                 3,100 3,403 3,497
Engineering Technologies Group [Member]                      
Net sales                 90,506 82,235 97,018
Depreciation and amortization                 5,976 5,363 4,278
Electronics Products Group [Member]                      
Net sales                 136,689 118,319 114,196
Depreciation and amortization                 4,960 3,200 2,759
Hydraulics Products Group [Member]                      
Net sales                 41,150 45,045 41,441
Depreciation and amortization                 730 651 665
Corporate and Other [Member]                      
Net sales                
Depreciation and amortization                 $ 343 $ 306 $ 309
[1] Net sales were identified based on geographic location where our products and services were initiated.