EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
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%	5.00%	5.00%	5.00%
Undistributed earning allocation rate of Class B common stock in excess of Class A common stock (in hundredths)	5.00%	5.00%	5.00%	5.00%
Numerator:
Net earnings	$ 2,600	$ 1,012	$ 4,939	$ 3,682
Undistributed earnings	1,789	212	2,512	1,288
Undistributed earnings (loss) allocation - basic and diluted:
Undistributed earnings	1,789	212	2,512	1,288
Net earnings allocation - basic and diluted:
Net earnings	2,600	1,012	4,939	3,682
Class A [Member]
Numerator:
Net earnings	445	167	834	620
Less Dividends	130	130	391	391
Undistributed earnings (loss) allocation - basic and diluted:
Undistributed earnings	315	37	443	229
Net earnings allocation - basic and diluted:
Net earnings	445	167	834	620
Weighted-average shares outstanding:
Common share - basic and diluted (in shares)	2,174,912	2,174,912	2,174,912	2,174,912
Earnings (loss) per share:
Common share - basic and diluted (in dollars per share)	$ 0.20	$ 0.08	$ 0.38	$ 0.29
Class B [Member]
Numerator:
Net earnings	2,155	845	4,105	3,062
Less Dividends	681	670	2,036	2,003
Undistributed earnings (loss) allocation - basic and diluted:
Undistributed earnings	1,474	175	2,069	1,059
Net earnings allocation - basic and diluted:
Net earnings	$ 2,155	$ 845	$ 4,105	$ 3,062
Weighted-average shares outstanding:
Common share - basic and diluted (in shares)	9,697,097	9,643,641	9,668,785	9,584,444
Earnings (loss) per share:
Common share - basic and diluted (in dollars per share)	$ 0.22	$ 0.09	$ 0.42	$ 0.32

Dividend rate of one class in excess of dividend rate of another class.

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