Note 4 - Unaudited Summarized Financial Information for NKD Enterprises, LLC - Operations (Details) - NKD Enterprises LLC [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Revenues	$ 1,878	$ 1,782
Operating loss	(58)	(2)
Net loss	(58)	(2)
Current assets	133	260
Non-current assets	3,004	3,004
Current liabilities	260	328
Stockholders’ equity	$ 2,877	$ 2,936