ORGANIZATION AND NATURE OF BUSINESS OPERATIONS (Details Narrtive) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Nov. 16, 2018
Number of unit sold	12,500,000
Gross proceeds	$ 125,000,000
Gross proceeds from private placement	4,250,000
Underwriting commissions	2,500,000
Offering costs	$ 458,987
Excercise price	$ 0.01
Discription of initial business combination	Initial Business Combination, either (i) in connection with a stockholder meeting called to approve the business combination or (ii) by means of a tender offer. However, in no event will the Company redeem its public shares in an amount that would cause its net tangible assets to be less than $5,000,001. In such case, the Company would not proceed with the redemption of its public shares and the related Initial Business Combination, and instead may search for an alternate Initial Business Combination.</font>
Forward Purchase Agreement [Member]
Number of unit sold	2,500,000
Offering price (per unit)	$ 10.00
Note Payable [Member]
Gross proceeds from public offering	$ 67,950	$ 50,000
Loan amount			$ 300,000
Class A Common Stock [Member]
Offering price (per unit)	$ 12.00
Common stock at par value	$ 0.0001	$ 0.0001
IPO [Member]
Gross proceeds	$ 1,685,930
Offering costs	450,864
Deposit in money market	143,750,000
Payment to sponsor	$ 67,950
Discription of initial business combination	Initial Business Combination within 18 months from the closing of the Public Offering, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but no more than ten business days thereafter redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account including interest but less taxes payable (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding public shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining stockholders and the Company’s board of directors, dissolve and liquidate, subject in each case to the Company’s obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law.
IPO [Member] | Pro Forma [Member]
Number of unit sold	1,875,000
Private Placement [Member]
Excercise price	$ 11.50
Private Placement [Member] | Forward Purchase Agreement [Member]
Aggregate price	$ 25,000,000
Private Placement [Member] | Pro Forma [Member]
Number of unit sold	37,500
Gross proceeds	$ 375,000
Over-Allotment Option [Member] | Pro Forma [Member]
Number of unit sold	1,875,000
Gross proceeds	$ 18,750,000
Offering costs	$ 375,000
B. Riley Principal Sponsor Co LLC [Member] | IPO [Member]
Number of unit sold	12,500,000
Offering price (per unit)	$ 10.00
B. Riley Principal Sponsor Co LLC [Member] | Private Placement [Member]
Number of unit sold	425,000
Offering price (per unit)	$ 10.00