NOTE H - ACQUISITION OF ELCOM TECHNOLOGIES, INC. (Detail) (USD $)			3 Months Ended	9 Months Ended	12 Months Ended		1 Months Ended
	Feb. 21, 2012 Common Stock Shares [Member] FEI-Elcom [Member]	Feb. 21, 2012 Settlement of Debt [Member] FEI-Elcom [Member]	Jan. 31, 2012 Elcom Technologies Inc [Member]	Jan. 31, 2012 Elcom Technologies Inc [Member]	Apr. 30, 2012 Elcom Technologies Inc [Member]	Feb. 21, 2012 Elcom Technologies Inc [Member]	Feb. 21, 2012 FEI-Elcom [Member]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage						74.88%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners						25.12%
Business Acquisition, Percentage of Voting Interests Acquired							100.00%
Business Acquisition, Cost of Acquired Entity, Cash Paid	$ 4,100,000	$ 910,000
Receivable Transfer To Investment							1,700,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value							7,900,000
Fair Value Inputs, Control Premium							15.00%
Business Acquisition, Purchase Price Allocation, Tangible Assets						4,600,000
Business Acquisition Purchase Price Allocatioin Deferred Tax Asset						2,600,000
Business Acquisition Purchase Price Allocation Intangible Assets and Goodwill						700,000
Business Acquisition, Purchase Price Allocation, Goodwill Amount						400,000
Gain (Loss) on Investments					730,000
Other than Temporary Impairment Losses, Investments				200,000
Additional Allowance For Investment Against Notes Receivable				150,000
Sales Revenue, Goods, Net				4,000
Professional Fees			0	16,000
Interest Income, Other			$ 32,000	$ 75,000