XML 38 R28.htm IDEA: XBRL DOCUMENT v3.19.1
Income Taxes (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Income Tax Contingency [Line Items]    
Income tax provision $ 5,900
Change in unrecognized tax benefits during the period
Accrual for uncertain tax positions  
Minimum [Member]    
Income Tax Contingency [Line Items]    
Tax years open for examination 2015  
Maximum [Member]    
Income Tax Contingency [Line Items]    
Tax years open for examination 2018