Net Finance Expense - Summary of Net Finance Expense (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Finance expense:
Interest and accretion expense on borrowings	$ 3,288,704	$ 3,168,762
Accretion expense on earn-out obligation and deferred consideration	133,450	166,575
Amortization of deferred financing fees	276,260	260,363
Net change in fair value of financial liabilities at fair value through earnings	2,861,204	971,627
Other	50,000
Total finance expense	6,609,618	4,567,327
Net finance expense	$ 6,609,618	$ 4,567,327