Note 3 - Business Acquisition (Detail) (USD $)		1 Months Ended
	Dec. 31, 2012	Jun. 30, 2011 High Performance Technologies, Inc. [Member]
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Business Acquisition, Cost of Acquired Entity, Cash Paid	$ 143,000,000	$ 143,000,000
Business Acquisition Net Working Capital		3,400,000
Business Acquisition, Purchase Price Allocation, Current Assets, Receivables		22,000,000
Finite Lived Intangible Asset Tax Deductible Period		15 years
Business Acquisition, Contingent Consideration, Potential Cash Payment		1,500,000
Tax Benefit from Stock Options Exercised		800,000
Other Tax Expense (Benefit)		$ 200,000