Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Accumulated Depreciation	$ 18,499	$ 17,444
Preferred Stock, shares authorized	150,000	150,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Stock, par value	$ 0	$ 0
Common Stock, shares authorized	25,000,000	25,000,000
Common Stock, shares issued	19,933,130	19,821,090
Common Stock, shares outstanding	19,933,130	19,821,090