Note 3 - Net Income (Loss) Per Common Share - Reconciliation of the Denominators Used in the Computation of Net Income Per Common Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Basic (in shares)	5,856	5,797
Dilutive impact of share-based awards (in shares)		19
Weighted shares of common stock outstanding - diluted (in shares)	5,856	5,816