Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Receivables, allowance for doubtful accounts	$ 41	$ 42
Property and equipment, accumulated depreciation and amortization	$ 1,640	$ 1,544
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	250,000	250,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	29,750,000	29,750,000
Common stock, shares issued (in shares)	17,904,854	17,786,959
Common stock, shares outstanding (in shares)	17,904,854	17,786,959