Note 3 - Acquisitions (Detail) (USD $)	6 Months Ended
	Jun. 30, 2012
Eagle Well Services, Inc [Member]
Business Acquisition, Cost of Acquired Entity, Purchase Price	$ 48,100,000
Business Acquisition, Cost of Acquired Entity, Cash Paid	48,100,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
Business Acquisition, Purchase Price Allocation, Goodwill Amount	10,126,000
Business Combination, Acquisition Related Costs	200,000
Business Acquisition, Purchase Price Allocation, Intangible Assets Other than Goodwill	14,300,000
SWH, Inc [Member] | Customer Relationships [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
SWH, Inc [Member] | Trade Names [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
SWH, Inc [Member]
Business Acquisition, Cost of Acquired Entity, Purchase Price	62,700,000
Business Acquisition, Cost of Acquired Entity, Cash Paid	7,900,000
Business Acquisition, Purchase Price Allocation, Goodwill Amount	23,529,000
Business Combination, Acquisition Related Costs	1,200,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)	2,027,500
Equity Issuance, Per Share Amount (in Dollars per share)	$ 27
Business Acquisition, Affiliate Ownership Description	Affiliates of Steel Partners Holdings L.P. ("Steel Partners") owned approximately 40% of the Company's outstanding common stock and 85% of BNS on May 31, 2012. As a result of the acquisition, Steel Partners beneficially owns approximately 51.1% of the Company's outstanding common stock.
Business Acquisition, Purchase Price Allocation, Intangible Assets Other than Goodwill	$ 27,300,000