Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Equity, Class of Treasury Stock [Line Items]
Common Stock, Par Value Per Share	$ 1	$ 1
Repurchase plan period, in years	1 year
Shares held at cost	229,823	283,610
Common stock shares authorized	15,000,000	15,000,000
Addition to capital from dividend reinvestment plan	$ 213
O2024Q4 Dividends [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock shares authorized	1,000,000
Addition to capital from dividend reinvestment plan	$ 1,200
Shares purchased through DRIP, shares	29,687
Dividend Reinvestment plan shares remain to be issues	128,518
Shares Repurchased	150,000
O2024Q3 Dividends [Member]
Equity, Class of Treasury Stock [Line Items]
Addition to capital from dividend reinvestment plan	$ 1,000