CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Common stock issued for stock grants- Gross (in shares)			23,260			10,674
Common stock, forfeited (in shares)			120			994
Dividends per share (in dollars per share)	$ 0.17	$ 0.17	$ 0.17	$ 0.155	$ 0.155	$ 0.155
Common stock, par value (in dollars per share)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Director
Common stock issued for stock grants- Gross (in shares)			2,824			1,962
Common stock issued - Stock options exercised (in shares)						1,200