Note 14 - Foreign Currency Rate Fluctuations (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Assets	$ 30,007,000		$ 29,270,000	[1]
Liabilities	15,050,000		14,535,000	[1]
Net Income (Loss) Attributable to Parent	213,000	459,000
International subsidiaries [Member]
Assets	14,600,000
Liabilities	11,900,000
Revenues	16,500,000	11,800,000
Net Income (Loss) Attributable to Parent	$ (147,000)	$ 44,000

[1] The Balance Sheet at December 31, 2012, is excerpted from the consolidated audited financial statements as of that date but does not include certain information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.