Note 7. RETIREMENT BENEFIT PLANS (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Expected Future Benefit Payments in Year One	$ 96,000
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax		800,000
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Transition Asset (Obligation), Recognized in Net Periodic Benefit Cost, before Tax	46,000
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Transition Assets (Obligations), before Tax		1,500,000	1,400,000
Pension Contributions		3,500,000
DeferredAnnualCompensationPercentage		50.00%
Deferred Compensation Arrangement with Individual, Requisite Service Period		five
UnfundedPensionInterestAccruedPercentage		4.00%
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities		3,089,000	2,923,000
OtherBenefits
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax		1,200,000
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Transition Asset (Obligation), Recognized in Net Periodic Benefit Cost, before Tax	$ 58,000