Note 15 - Acquisition (Detail) (USD $)	12 Months Ended		12 Months Ended		12 Months Ended			12 Months Ended		0 Months Ended
	Jun. 30, 2012	Mar. 19, 2012	Jun. 30, 2012 Minimum [Member]	Mar. 19, 2012 Minimum [Member]	Jun. 30, 2012 Maximum [Member]	Mar. 19, 2012 Maximum [Member]	Mar. 19, 2012 Compensation Expense [Member]	Jun. 30, 2012 LSI Virticus [Member]	Mar. 19, 2012 LSI Virticus [Member]	Mar. 19, 2012 Technology [Member]	Mar. 19, 2012 Noncompete Agreements [Member]
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Business Acquisition, Cost of Acquired Entity, Cash Paid		$ 3,150,000
Business Acquisition, Contingent Consideration, Potential Cash Payment		5,000,000		0		5,000,000
Business Acquisition Percentage of Earn-Out Recorded As Compensation Expense		76.00%
Business Acquisition Percentage of Earn-Out Allocated To Purchase Price							24.00%
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred		877,000
Business Acquisition, Purchase Price Allocation, Goodwill Amount		2,413,000							2,413,000
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets									1,191,000	1,133,000	58,000
Finite-Lived Intangible Asset, Useful Life			2 years		20 years					7 years	6 years
Business Acquisition, Cost of Acquired Entity, Transaction Costs		585,000
Business Acquisition Inventory Adjustments	25,000
Deferred Tax Assets, Operating Loss Carryforwards								258,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	71,000
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax	(777,000)
Business Combination, Acquisition Related Costs								$ 150,000