Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS
Allowance for doubtful accounts	$ 104	$ 83
LIABILITIES AND SHAREHOLDERS’ EQUITY
Preferred shares, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred shares, authorized (in shares)	100,000,000	100,000,000
Preferred shares, issued (in shares)	0	0
Preferred shares, outstanding (in shares)	0	0
Common shares, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	400,000,000	400,000,000
Common shares, issued (in shares)	60,765,796	60,263,670
Common shares, outstanding (in shares)	60,765,796	60,263,670