Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts	$ 5,000	$ 5,000
Long-term debt, discount and financing costs	$ 3,142	$ 4,781
Ordinary shares, par value	$ 0.001	$ 0.001
Ordinary shares, shares authorized	50,000,000	50,000,000
Ordinary shares, shares issued	13,115,026	13,115,026
Ordinary shares, shares outstanding	13,115,026	13,115,026