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Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details)		1 Months Ended			3 Months Ended				6 Months Ended
	Jun. 02, 2015 USD ($)	Jan. 23, 2014 USD ($)	Dec. 30, 2013 USD ($)	Aug. 31, 2011 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Increase in Undistributed Earnings							$ 1,300,000		$ (700,000)	$ 1,500,000
Net Income (Loss) Attributable to Noncontrolling Interest					$ 1,547,000		1,245,000		1,839,000	1,520,000
Payments to Noncontrolling Interests					$ 2,500,000		200,000		2,451,000	1,190,000
Number of Agreements with Noncontrolling Interests					2
Business Acquisition Undiscounted earn out Liability Decrease						$ 0
Interest Income, Other					$ 69,000		189,000		$ 432,000	531,000
CEO of RHB [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Disability Insurance Policy, Term	5 years
Insurance Policy, Disability Benefit, Principal Amount	$ 20,000,000
Myers [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					50.00%				50.00%
Noncontrolling Interest, Ownership Percentage by Parent					50.00%				50.00%
Noncontrolling Interests, Option to Buy Company's 50% Interest Under Certain Conditions, Price					$ 1.00
RHB [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					50.00%				50.00%
Noncontrolling Interest, Ownership Percentage by Parent					50.00%				50.00%
Noncontrolling Interests, Option to Buy Company's 50% Interest Under Certain Conditions, Price					$ 1.00
Upon Death [Member] | CEO of RHB [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Obligation to Purchase Member Interest			$ 20,000,000
Obligation to Purchase Percentage Member Interest			50.00%
Cash Surrender Value of Life Insurance			$ 20,000,000
Upon Permanent Disability [Member] | CEO of RHB [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Obligation to Purchase Member Interest			$ 18,000,000
JBC [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Business Acquisition Additional Price Payments				$ 5,000,000
Business Acquisition Additional Price Payments Term				5 years
Business Acquisition Earn-Out Percentage				50.00%
Business Acquisition Undiscounted earn out Liability Decrease		$ 600,000
Business Acquisition Undiscounted Earn-Out Liability					0	0			$ 0		$ 1,400,000
Business Acquisition Earn Out Payment								$ 800,000
Business Acquisition, Cost of Acquired Entity, Discounted Present Value of Additional Purchase Price										300,000
Revaluation Benefit										300,000
Business Acquisition Undiscounted Earn-Out Liability Increase					9,300,000				9,300,000
EBITDA Earn-Out Increase Floor									18,500,000
Interest Expense, Other							$ 100,000			$ 300,000
Interest Income, Other					$ 0	$ 300,000			$ 300,000
JBC [Member] | Years 2011 to 2015 [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Business Acquisition Earn-Out Calculated Floor				$ 2,000,000
JBC [Member] | Seven Months Ended 2016 [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Business Acquisition Earn-Out Calculated Floor				$ 1,200,000
JBC [Member] | Original Earn-out Liability [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Business Acquisition Undiscounted Earn-Out Liability		5,000,000
JBC [Member] | If certain EBITDA thresholds are met [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Business Acquisition Undiscounted Earn-Out Liability		10,000,000
JBC [Member] | For 2014 and 2015 [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Business Acquisition Earn-Out Calculated Floor		1,500,000
JBC [Member] | For 2016 and 2017 [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) [Line Items]
Business Acquisition Earn-Out Calculated Floor		$ 2,000,000

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