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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Detail)
 3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
Segment
Office
Jun. 30, 2014
USD ($)
Dec. 31, 2014
USD ($)
Accounting Policies [Line Items]          
Number of offices in which the company operates throughout the country | Office     23    
Held to maturity or trading securities $ 0   $ 0   $ 0
Debt securities other than temporarily impaired 0   $ 0   0
Maturity of interest bearing deposits     90 days    
Balance of loans serviced for others 311,277,000   $ 311,277,000   315,239,000
Foreclosed real estate totaled 1,062,000   1,062,000   932,000
Advertising expense 144,000 $ 133,000 $ 256,000 $ 366,000  
Percentage of deferred tax assets     50.00%    
Accumulated other comprehensive income (loss), net of taxes $ 745,000   $ 745,000   $ 1,576,000
Number of significant operating segment | Segment     1    
Minimum | Building and Improvements          
Accounting Policies [Line Items]          
Plant and equipment, useful life     10 years    
Minimum | Furniture and Equipment          
Accounting Policies [Line Items]          
Plant and equipment, useful life     3 years    
Maximum          
Accounting Policies [Line Items]          
Cash and cash equivalents, original maturities     90 days    
Maximum | Building and Improvements          
Accounting Policies [Line Items]          
Plant and equipment, useful life     40 years    
Maximum | Furniture and Equipment          
Accounting Policies [Line Items]          
Plant and equipment, useful life     15 years