Note 12 - Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	For the Years Ended December 31,
	2013		2014		2015
Weighted average number of common shares outstanding - basic		2,921,208		3,103,728		3,239,306
Effect of dilutive securities		—		64,433		74,335
Weighted average number of common shares and potential common shares - diluted		2,921,208		3,168,161		3,313,641
Net income	$	109,144	$	5,029	$	7,484
Net income per common share - basic	$	37.36	$	1.62	$	2.31
Net income per common share - diluted	$	37.36	$	1.59	$	2.26