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Note 2 - Summary of Significant Accounting Policies (Details) - Reconciliation of Net Income and Number of Shares Used in Computations of Basic and Diluted EPS (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Reconciliation of Net Income and Number of Shares Used in Computations of Basic and Diluted EPS [Abstract]    
Net income (numerator) (in Dollars) $ 2,742,000us-gaap_NetIncomeLoss $ 2,079,000us-gaap_NetIncomeLoss
Shares (denominator):    
Basic weighted average common shares outstanding 18,414,775us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 19,203,406us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Add: Dilutive effect of common stock options 309,410us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements 24,461us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Diluted weighted average common shares outstanding 18,724,185us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 19,227,867us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Earnings per common share:    
Basic (in Dollars per share) $ 0.15us-gaap_EarningsPerShareBasic $ 0.11us-gaap_EarningsPerShareBasic
Diluted (in Dollars per share) $ 0.15us-gaap_EarningsPerShareDiluted $ 0.11us-gaap_EarningsPerShareDiluted