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Note 2 - Acquisition (Details) - Components of Fair Value of Acquisitions and Allocation of Purchase Price (USD $) In Thousands, unless otherwise specified	6 Months Ended		1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jun. 20, 2014	Jun. 30, 2014
Fair value of business combination:
Total	$ 57,149	$ 0
Identifiable assets acquired and liabilities assumed:
Goodwill	154,764us-gaap_Goodwill			125,965us-gaap_Goodwill
Preliminary Allocations [Member] \| Ultrafryer Systems, Inc. [Member]
Fair value of business combination:
Cash payments	20,745
Less: cash acquired	(20)
Total	20,725
Identifiable assets acquired and liabilities assumed:
Current Assets	5,871
Property, plant, and equipment	1,259
Identifiable intangible assets	7,612
Goodwill	10,930
Liabilities assumed	(1,733)
Deferred taxes	(3,214)
Total	20,725
Adjustments [Member] \| Ultrafryer Systems, Inc. [Member]
Fair value of business combination:
Cash payments	2,241
Total	2,241
Identifiable assets acquired and liabilities assumed:
Current Assets	50
Property, plant, and equipment	2,100
Goodwill	91
Total	2,241
Ultrafryer Systems, Inc. [Member]
Fair value of business combination:
Cash payments	22,986		23,000
Less: cash acquired	(20)
Total	22,966
Identifiable assets acquired and liabilities assumed:
Current Assets	5,921
Property, plant, and equipment	3,359
Identifiable intangible assets	7,612		7,600
Goodwill	11,021		11,000
Liabilities assumed	(1,733)
Deferred taxes	(3,214)
Total	$ 22,966