Note 11 - Reconciliation of the Denominators Used in the Computation of Net Income per Common Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Basic (in shares)	5,753	5,665	5,545
Dilutive impact of share-based awards (in shares)	65	89	95
Weighted shares of common stock outstanding - diluted (in shares)	5,818	5,754	5,640