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EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Earnings Per Share by Two Class Method [Line Items] |  |  |  |
Undistributed earning allocation rate of Class B common stock in excess of Class A common stock (in hundredths) |  |  | 5.00% |
Numerator [Abstract] |  |  |  |
Net earnings | $ 1,507 | $ 7,380 | $ 7,075 | $ 8,511
Undistributed earnings | 697 | 6,599 | 4,698 | 6,195
Undistributed earnings allocation - basic and diluted [Abstract] |  |  |  |
Total undistributed earnings | 697 | 6,599 | 4,698 | 6,195
Net earnings allocation basic and diluted [Abstract] |  |  |  |
Net earnings | 1,507 | 7,380 | 7,075 | 8,511
Class A [Member] |  |  |  |
Numerator [Abstract] |  |  |  |
Net earnings | 255 | 1,340 | 1,238 | 1,528
Less Dividends declared: | 131 | 131 | 391 | 391
Undistributed earnings allocation - basic and diluted [Abstract] |  |  |  |
Total undistributed earnings | 124 | 1,209 | 847 | 1,137
Net earnings allocation basic and diluted [Abstract] |  |  |  |
Net earnings | 255 | 1,340 | 1,238 | 1,528
Weighted-average shares outstanding [Abstract] |  |  |  |
Common share - basic and diluted (in shares) | 2,174,912 | 2,174,912 | 2,174,912 | 2,174,912
Earnings per share [Abstract] |  |  |  |
Common share - basic and diluted (in dollars per share) | $ 0.12 | $ 0.62 | $ 0.57 | $ 0.70
Class B [Member] |  |  |  |
Earnings Per Share by Two Class Method [Line Items] |  |  |  |
Dividend rate Class B common stock in excess of dividend rate of Class A common stock (in hundredths) |  |  | 5.00% |
Numerator [Abstract] |  |  |  |
Net earnings | 1,252 | 6,040 | 5,837 | 6,983
Less Dividends declared: | 679 | 650 | 1,986 | 1,925
Undistributed earnings allocation - basic and diluted [Abstract] |  |  |  |
Total undistributed earnings | 573 | 5,390 | 3,851 | 5,058
Net earnings allocation basic and diluted [Abstract] |  |  |  |
Net earnings | $ 1,252 | $ 6,040 | $ 5,837 | $ 6,983
Weighted-average shares outstanding [Abstract] |  |  |  |
Common share - basic and diluted (in shares) | 9,590,586 | 9,228,731 | 9,420,111 | 9,221,032
Earnings per share [Abstract] |  |  |  |
Common share - basic and diluted (in dollars per share) | $ 0.13 | $ 0.65 | $ 0.62 | $ 0.76

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