Note 1 - General (Details Textual) $ in Millions		9 Months Ended
	Sep. 05, 2016 USD ($) shares	Sep. 30, 2016
Philou Ventures, LLC and Telkoor Telecom Ltd. [Member]
Securities Purchase Agreement, Number of Shares Sold by One Shareholder to Another	2,714,610
Securities Purchase Agreement, Ownership Percentage Sold by One Shareholder to Another	40.06%
Securities Purchase Agreement, Equity Interest Sold by One Shareholder to Another, Sale Price | $	$ 1.5
Telkoor [Member]
Cost Method Investment Sold, Shares	1,136,666
Number of Reportable Segments		2