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