Note 14 - Earnings Per Share (Detail) - Reconciliation of Basic and Diluted Earnings Per Share (USD $)	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
Net earnings used in the computation of basic and diluted earnings per share (in Dollars)	$ 485,000	$ 1,242,000	$ 977,000	$ 327,000	$ 725,000	$ 1,880,000	$ 932,000	$ 599,000	$ 3,031,000	$ 4,136,000
Weighted average shares outstanding - basic	6,091,377	6,063,269	6,066,244	6,025,874	5,987,598	5,986,676	5,995,147	5,978,828	6,061,691	5,987,062
Common stock equivalents									81,306	107,852
Total weighted average shares outstanding - diluted	6,140,372	6,148,012	6,140,986	6,142,616	6,137,137	6,079,430	6,092,118	6,070,970	6,142,997	6,094,914
Basic
Net earnings (in Dollars per share)	$ 0.08	$ 0.20	$ 0.16	$ 0.05	$ 0.12	$ 0.31	$ 0.16	$ 0.10	$ 0.50	$ 0.69
Diluted
Net earnings (in Dollars per share)	$ 0.08	$ 0.20	$ 0.16	$ 0.05	$ 0.12	$ 0.31	$ 0.15	$ 0.10	$ 0.49	$ 0.68