Note 11 - Income Tax (Details) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Note 11 - Income Tax (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ 278,000	$ 880,000
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount		(764,000)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	123,000	353,000	(751,000)
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount			160,000
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount			92,000
Deferred Tax Assets, Net	28,342,000	31,070,000
Increase (Decrease) in Pension Plan Obligations			16,000,000
Domestic Taxable Income Needed to Utilize Federal Net Operating Loss Carryforward	18,000,000
Income Taxes Receivable, Noncurrent	3,775,000	3,770,000
Undistributed Earnings of Foreign Subsidiaries	71,000,000
Proceeds from Equity Method Investment, Dividends or Distributions		2,400,000
Domestic Tax Authority [Member]
Note 11 - Income Tax (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount		(162,000)
State and Local Jurisdiction [Member]
Note 11 - Income Tax (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		782,000
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	1,200,000
Foreign Tax Authority [Member]
Note 11 - Income Tax (Details) [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(1,200,000)
Impact of Return to Provision Adjustments [Member]
Note 11 - Income Tax (Details) [Line Items]
Other Tax Expense (Benefit)	(265,000)
State Administration of Taxation, China [Member]
Note 11 - Income Tax (Details) [Line Items]
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	204,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(428,000)
Her Majesty's Revenue and Customs (HMRC) [Member]
Note 11 - Income Tax (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	278,000	98,000
Effective Income Tax Rate Reconciliation, Percent	20.00%	23.00%
Secretariat of the Federal Revenue Bureau of Brazil [Member]
Note 11 - Income Tax (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount		(350,000)
Internal Revenue Service (IRS) [Member]
Note 11 - Income Tax (Details) [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 18,000,000