Note 12 - Income Taxes (Details) - Effective Tax Rate Analysis and Reconciliation of Expected Statutory Rate (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Effective Tax Rate Analysis and Reconciliation of Expected Statutory Rate [Abstract]
Expected income tax provision at U.S. statutory rate	$ 1,363	$ 1,038
Increase (decrease) in tax from:
Current year tax credits (foreign and research)	(417)	(523)
Foreign income tax rate differences	(80)	(36)
Changes in valuation allowance	(286)	89
Deemed dividend from foreign subsidiaries	135	212
Domestic tax expense, net of Federal benefit	127	72
Nondeductible expenses	10	20
NOL carryforwards utilized	200	103
Other	(121)	(78)
Income tax expense	$ 931	$ 897