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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2012
Issuance of common stock, net of offering costs, Shares   1,945,815us-gaap_StockIssuedDuringPeriodSharesNewIssues
Cash dividends on common stock, per share $ 0.075us-gaap_CommonStockDividendsPerShareDeclared  
Issuance of common stock dividend reinvestment plan, shares 3,113us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan 0us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Common Stock [Member]    
Issuance of common stock, net of offering costs, Shares   1,945,815us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Cash dividends on common stock, per share $ 0.075us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		  
Issuance of common stock dividend reinvestment plan, shares 3,113us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember