Note 13 - Legal Proceedings (Details Textual) - Subsequent Event [Member] - $ / shares	Feb. 26, 2016	Feb. 25, 2016	Feb. 02, 2016	Jan. 15, 2016
The "january 15, 2016 II-VI Merger Agreement [Member] | II-VI [Member] | Wes Zalewski VS. Anadigics, Inc [Member] | Business Acquired under the Merger Agreement [Member]
Business Acquisition, Share Price				$ 0.66
Merger Agreement with a Bidder [Member]
Business Acquisition, Share Price		$ 0.35
The "February 26, 2016 II-VI Merger Agreement [Member]
Business Acquisition, Share Price	$ 0.85
II-VI [Member] | Business Acquired under the Merger Agreement [Member]
Business Acquisition, Share Price			$ 0.85