Note 13 - Regulatory Capital Requirements (Detail) - The Bank's Actual Regulatory Capital Amounts and Ratios: (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Total Risk Based Capital (to Risk Weighted Assets) (in Dollars)	$ 79,227	$ 80,185
Total Risk Based Capital (to Risk Weighted Assets)	17.18%	16.53%
Tier 1 Capital (to Risk Weighted Assets) (in Dollars)	73,425	74,098
Tier 1 Capital (to Risk Weighted Assets)	15.92%	15.28%
Tier 1 Leverage Capital (to Average Assets) (in Dollars)	$ 73,425	$ 74,098
Tier 1 Leverage Capital (to Average Assets)	10.62%	10.35%