Note 7. RETIREMENT BENEFIT PLANS (Detail) - Information regarding the Company’s net periodic benefit cost for pension and other postretirement b (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Projected benefit obligation at beginning of year	$ 1,395	$ 1,352
Interest cost	64	69
Actuarial loss (gain)	122	73
Benefits paid	(127)	(99)
Projected benefit obligation at end of year	1,454	1,395
Fair value of plan assets at	941	955
Funded status at end of year	(513)	(440)
Other non-current assets	(36)	(24)
Other liabilities	549	464
Total	513	440
Fair Value, Inputs, Level 1 [Member] | OtherBenefits
Benefits paid	(266)	(260)
Employer contributions	266	260
Fair Value, Inputs, Level 1 [Member]
Benefits paid	(127)	(99)
Fair value of plan assets at	955	931
Actuarial return on plan assets	46	46
Employer contributions	67	77
OtherBenefits
Projected benefit obligation at beginning of year	2,699	1,782
Interest cost	123	128
Actuarial loss (gain)	214	1,049
Benefits paid	(267)	(260)
Projected benefit obligation at end of year	2,769	2,699
Funded status at end of year	(2,769)	(2,699)
Accrued expenses	231	241
Other liabilities	2,538	2,458
Total	$ 2,769	$ 2,699