CONDENSED CONSOLDIATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 313	$ 322
Preferred stock, par value
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	7,231,587	7,154,591
Common stock, shares outstanding	7,231,587	7,154,591