Note 12 - Reconciliation of Income (Loss) Per Common Share (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Weighted average number of common shares outstanding - basic (in shares)	3,239,306	3,103,728	2,921,208
Effect of dilutive securities (in shares)	74,335	64,433
Weighted average number of common shares and potential common shares - diluted (in shares)	3,313,641	3,168,161	2,921,208
Net income	$ 7,484	$ 5,029	$ 109,144
Net income per common share-basic (in dollars per share)	$ 2.31	$ 1.62	$ 37.36
Net income per common share - diluted (in dollars per share)	$ 2.26	$ 1.59	$ 37.36