XML 56 R37.htm IDEA: XBRL DOCUMENT v3.20.1
Income Taxes (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Deferred tax assets    
Net operating loss carryforwards $ 4,494 $ 3,577
Valuation allowance (4,494) (3,577)
Net deferred tax assets