Note 8 - Earning Per Share (Detail) - Earning Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Basic loss per share:
Net (loss) income (in Dollars)	$ (1,193)	$ (541)	$ (1,122)	$ (929)	$ (1,112)	$ 59	$ 317	$ 231	$ (3,785)	$ (505)	$ (8,419)
Weighted average common shares outstanding									6,975	6,857	6,839
Dilutive stock options and restricted stock									0	0	0
Weighted average common shares outstanding – assuming dilution									6,975	6,857	6,839
Diluted loss per share (in Dollars per share)	$ (0.17)	$ (0.08)	$ (0.16)	$ (0.13)	$ (0.16)	$ 0.01	$ 0.04	$ 0.03	$ (0.54)	$ (0.07)	$ (1.23)
Basic loss per share (in Dollars per share)	$ (0.17)	$ (0.08)	$ (0.16)	$ (0.13)	$ (0.16)	$ 0.01	$ 0.05	$ 0.03	$ (0.54)	$ (0.07)	$ (1.23)
Stock Options [Member]
Basic loss per share:
Outstanding stock options that were not included in the diluted calculation because their effect would be anti-dilutive									750	704	1,371