Note 3 - Acquisitions (Detail) (USD $)	12 Months Ended						1 Months Ended			12 Months Ended				12 Months Ended			12 Months Ended				1 Months Ended	12 Months Ended		1 Months Ended			12 Months Ended	1 Months Ended
	Dec. 31, 2012	Nov. 05, 2012	May 31, 2012 Prior to Execution of Share Purchase Agreement [Member] Percent of the Company Owned By Steel Partners [Member]	May 31, 2012 Prior to Execution of Share Purchase Agreement [Member] Percent of BNS owned by Steel Partners [Member]	May 31, 2012 Subsequent to Execution of Share Purchase Agreement [Member] Percent of the Company Owned By Steel Partners [Member]	Nov. 05, 2012 Loan To Fund Leasehold Improvements and Equipment [Member] CrossFit Torrance [Member]	Dec. 31, 2011 Minimum [Member] Rogue [Member] Customer Relationships And A Trade Name [Member]	Dec. 31, 2011 Maximum [Member] Rogue [Member] Customer Relationships And A Trade Name [Member]	Jun. 30, 2011 Baseball Heaven [Member] Customer Relationships [Member]	Dec. 31, 2011 Baseball Heaven [Member] Customer Relationships [Member]	Dec. 31, 2012 Baseball Heaven [Member]	Dec. 31, 2011 Baseball Heaven [Member]	Jun. 27, 2011 Baseball Heaven [Member]	Dec. 31, 2012 The Show [Member]	Dec. 31, 2011 The Show [Member]	Aug. 15, 2011 The Show [Member]	Dec. 31, 2011 Rogue [Member] Customer Relationships And A Trade Name [Member]	Dec. 31, 2012 Rogue [Member]	Dec. 31, 2011 Rogue [Member]	Dec. 07, 2011 Rogue [Member]	Feb. 28, 2012 Eagle Well Services, Inc [Member]	Dec. 31, 2012 Eagle Well Services, Inc [Member]	Feb. 09, 2012 Eagle Well Services, Inc [Member]	May 31, 2012 SWH, Inc [Member] Customer Relationships [Member]	May 31, 2012 SWH, Inc [Member] Trade Names [Member]	May 31, 2012 SWH, Inc [Member]	Dec. 31, 2012 SWH, Inc [Member]	Nov. 30, 2012 CrossFit South Bay [Member]	Nov. 05, 2012 CrossFit South Bay [Member]	Nov. 05, 2012 CrossFit Torrance [Member]	Aug. 15, 2011 The Show [Member]
Business Acquisition, Cost of Acquired Entity, Cash Paid													$ 6,000,000			$ 1,500,000				$ 29,000,000			$ 48,100,000			$ 7,900,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							5 years	10 years	5 years												10 years			10 years	5 years
Amortization of Acquired Intangible Assets										20,000							29,000
Business Acquisition, Purchase Price Allocation, Goodwill Amount		154,000											192,000			1,796,000				6,256,000			10,126,000			36,557,000			100,000
Goodwill, Impairment Loss	192,000										192,000			1,796,000
Business Combination, Acquisition Related Costs												200,000			100,000				200,000			200,000					1,200,000	4,252
Business Acquisition, Percentage of Voting Interests Acquired																													50.00%	50.00%	75.00%
Business Acquisition, Cost of Acquired Entity, Purchase Price																				30,200,000						68,700,000			82,500
Business Acquisition, Contingent Consideration, at Fair Value																				1,218,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(743,000)																	(700,000)
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)																										2,027,500
Equity Issuance, Per Share Amount (in Dollars per share)																										$ 30
Equity, Ownership Percentage			40.00%	85.00%	51.10%
Business Acquisition, Purchase Price Allocation, Intangible Assets Other than Goodwill													235,000							5,600,000			14,300,000			27,300,000
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred						$ 1,100,000