BROKER DEALERS (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2018 USD ($) subsidiary	Dec. 31, 2017 USD ($)
Related Party Transaction [Line Items]
Number of broker-dealer subsidiaries (in subsidiary) | subsidiary	2
SpeedRoute
Related Party Transaction [Line Items]
Actual net capital	$ 873,707	$ 334,848
Amount in excess of required net capital	746,775	233,485
Minimum required net capital	$ 126,932	$ 101,363
Net capital ratio	2.18	4.50
Pro Securities
Related Party Transaction [Line Items]
Actual net capital	$ 55,572	$ 24,175
Amount in excess of required net capital	50,572	19,175
Minimum required net capital	$ 5,000	$ 5,000
Net capital ratio	0.34	1.30