Note 9 - Earnings Per Share - Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Employee Stock Option [Member]
Diluted net loss per share:
Dilutive stock options (in shares)
Outstanding stock options that were not included in the diluted calculation because their effect would be anti-dilutive (in shares)	827	258	825	263
Net loss	$ (1,273)	$ (1,128)	$ (2,782)	$ (2,144)
Weighted average common shares outstanding (in shares)	8,394	7,011	8,394	7,011
Basic net loss per share (in dollars per share)	$ (0.15)	$ (0.16)	$ (0.33)	$ (0.31)
Net loss	$ (1,273)	$ (1,128)	$ (2,782)	$ (2,144)
Weighted average common shares outstanding (in shares)	8,394	7,011	8,394	7,011
Weighted average common shares outstanding – assuming dilution (in shares)	8,394	7,011	8,394	7,011
Diluted net loss per share (in dollars per share)	$ (0.15)	$ (0.16)	$ (0.33)	$ (0.31)