Note 6. RETIREMENT BENEFIT PLANS (Details) - The following table presents estimated future benefit payments (amounts in thousands): (USD $)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liability for Future Policy Benefit, by Product Segment [Line Items]
2013						$ (76,000)	$ (2,995,000)
2014							(2,882,000)
2015							(2,346,000)
2016							(2,269,000)
2017							(2,098,000)
Thereafter							(12,590,000)
Pension Plan, Defined Benefit [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
2013							37,000
2014						89,000
2015					270,000
2016				46,000
2017			108,000
Thereafter		387,000
	937,000
Other Pension Plan, Defined Benefit [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
2013							145,000
2014						145,000
2015					113,000
2016				100,000
2017			95,000
Thereafter		372,000
	$ 970,000