Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current Assets:
Allowance for doubtful accounts	$ 38	$ 33
Shareholders’ Equity:
Common shares, shares authorized	480,000,000	480,000,000
Common shares, shares issued	128,897,430	122,904,368
Common shares, shares outstanding	128,897,430	122,904,368