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Note 17 - Stock Repurchase Plan (Detail) (USD $)	12 Months Ended
Note 17 - Stock Repurchase Plan (Detail) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Aug. 01, 2008
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	274,886		1,000,000
Stock Repurchased and Retired During Period, Shares	36,570	76,693
Stock Repurchased and Retired During Period, Value (in Dollars)	$ 437,000	$ 882,000

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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