Quarterly report pursuant to Section 13 or 15(d)

8. Fair Value of Financial Instruments (Details)

v3.19.1
8. Fair Value of Financial Instruments (Details) - Fair Value Measurements Recurring [Member] - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Fair Value, Inputs, Level 1 [Member]    
Asset fair value disclosure $ 142,222,617 $ 141,441,036
Liability fair value disclosure 0 0
Fair Value, Inputs, Level 1 [Member] | Cash and marketable securities held in trust account [Member]    
Asset fair value disclosure 142,027,742 141,307,307
Fair Value, Inputs, Level 1 [Member] | Cash and cash equivalents [Member]    
Asset fair value disclosure 194,875 133,729
Fair Value, Inputs, Level 2 [Member]    
Asset fair value disclosure 0 0
Liability fair value disclosure 0 0
Fair Value, Inputs, Level 2 [Member] | Cash and marketable securities held in trust account [Member]    
Asset fair value disclosure 0 0
Fair Value, Inputs, Level 2 [Member] | Cash and cash equivalents [Member]    
Asset fair value disclosure 0 0
Fair Value, Inputs, Level 3 [Member]    
Asset fair value disclosure 0 0
Liability fair value disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Cash and marketable securities held in trust account [Member]    
Asset fair value disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Cash and cash equivalents [Member]    
Asset fair value disclosure $ 0 $ 0