Note 14 - Other Comprehensive Income (Loss) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Balance	$ (2,929,000)	$ (1,091,000)	$ (928,000)
Other comprehensive loss before reclassifications	(2,283,000)	(1,838,000)	(163,000)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0
Net current-period other comprehensive loss	(2,283,000)	(1,838,000)	(163,000)
Balance	$ (5,212,000)	$ (2,929,000)	$ (1,091,000)