Consolidated Balance Sheets (Parenthetical) - USD ($)	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, liquidation preference	$ 1,000	$ 1,000
Preferred stock, shares authorized (in shares)	60,375	60,375
Preferred stock, shares issued (in shares)		0	60,375
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	16,978,057	15,360,946
Treasury stock, shares (in shares)	144,967	112,961