Note 8 - Income Taxes (Detail) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013
Income Tax Expense (Benefit)	$ 585,000	$ 444,000
Tax Credit Carryforward Limitations On Use Percentage	50.00%
Other Tax Expense (Benefit)		300,000
Deferred Federal Income Tax Expense (Benefit)	200,000
Hungarian Municipality Tax [Member]
Income Tax Expense (Benefit)	400,000	200,000	100,000
U.S. and Mexico [Member]
Income Tax Expense (Benefit)		$ 100,000	$ 100,000