REVENUE - Disaggregation of Revenue (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Total revenue	$ 28,388,463	$ 24,725,446
Product revenue
Disaggregation of Revenue [Line Items]
Total revenue	23,749,917	21,054,723
Paint protection film
Disaggregation of Revenue [Line Items]
Total revenue	19,771,119	18,456,356
Window film
Disaggregation of Revenue [Line Items]
Total revenue	3,090,106	1,832,917
Other
Disaggregation of Revenue [Line Items]
Total revenue	888,692	765,450
Service revenue
Disaggregation of Revenue [Line Items]
Total revenue	4,638,546	3,670,723
Software
Disaggregation of Revenue [Line Items]
Total revenue	851,571	743,768
Cutbank credits
Disaggregation of Revenue [Line Items]
Total revenue	1,613,264	1,465,133
Installation labor
Disaggregation of Revenue [Line Items]
Total revenue	2,021,450	1,298,388
Training
Disaggregation of Revenue [Line Items]
Total revenue	$ 152,261	$ 163,434