CONSOLIDATED STATEMENTS OF CHANGES IN SHAREOWNERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss, Net of Taxes [Member]
Balance at Dec. 31, 2017	$ 284,210	$ 170	$ 36,674	$ 279,410	$ (32,044)
Balance (in shares) at Dec. 31, 2017	16,988,951
Net Income	$ 5,773	0	0	5,773	0
Other Comprehensive Loss, Net of Tax	(1,100)	0	0	0	(1,100)
Cash Dividends ($0.2300 and $0.1700 per share for September 30, 2018 and September 30, 2017, respectively)	(1,193)	0	0	(1,193)	0
Stock Compensation Expense	331	0	331	0	0
Impact of Transactions Under Compensation Plans, net	339	$ 1	338	0	0
Impact of Transactions Under Compensation Plans, net (in shares)		55,115
Balance at Mar. 31, 2018	$ 288,360	$ 171	37,343	283,990	(33,144)
Balance, Shares at Mar. 31, 2018	17,044,066
Balance at Dec. 31, 2018	$ 302,587	$ 167	31,058	300,177	(28,815)
Balance (in shares) at Dec. 31, 2018	16,747,571	16,747,571
Net Income	$ 6,436	$ 0	0	6,436	0
Other Comprehensive Loss, Net of Tax	941	0	0	0	941
Cash Dividends ($0.2300 and $0.1700 per share for September 30, 2018 and September 30, 2017, respectively)	(1,850)	0	0	(1,850)	0
Stock Compensation Expense	499	0	499	0	0
Impact of Transactions Under Compensation Plans, net	373	$ 1	372	0	0
Impact of Transactions Under Compensation Plans, net (in shares)		64,889
Balance at Mar. 31, 2019	$ 308,986	$ 168	$ 31,929	$ 304,763	$ (27,874)
Balance, Shares at Mar. 31, 2019	16,812,460	16,812,460