Note 4 - Other Accounts Receivable and Prepaid Expenses (Details) - Other Accounts Receivable and Prepaid Expenses - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Accounts Receivable and Prepaid Expenses [Abstract]
Prepaid expenses	$ 2,054	$ 1,010
Tax and governmental receivables	956	649
Deposits	260	208
Others	49	35
	$ 3,319	$ 1,902