Equity (Details) - USD ($)			3 Months Ended	12 Months Ended
	Jan. 01, 2020	Jul. 21, 2014	Mar. 31, 2020	Dec. 31, 2019	May 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jul. 15, 2014
Class of Stock [Line Items]
Common stock, shares authorized (in shares)			100,000,000	100,000,000
Common stock, par or stated value per share (in usd per share)			$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)			1,000,000
Preferred stock, par or stated value per share (in usd per shares)			$ 0.0001
Class of warrant or right, outstanding (in shares)			4,576,799	4,576,799
Class of warrant or right, exercise price of warrants or rights (in usd per share)							$ 11.50
Unit Purchase Options
Class of Stock [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross (in shares)		300,000
Share-based compensation arrangement by share-based payment award, options, outstanding, number (in shares)						17,100
RSU | 2016 Omnibus Incentive Plan
Class of Stock [Line Items]
Granted, awards (in shares)				274,851
RSU | Omnibus Incentive Plan 2019
Class of Stock [Line Items]
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares)					1,150,000
Service-Based RSUs
Class of Stock [Line Items]
Granted, awards (in shares)			103,700
Service-Based RSUs | Omnibus Incentive Plan 2019
Class of Stock [Line Items]
Granted, awards (in shares)			103,700
Employee Stock | 2019 Employee Stock Purchase Plan
Class of Stock [Line Items]
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares)	500,000
ESPP purchase price of common stock, percent of market price	85.00%
Maximum participant contribution rate	10.00%
Maximum contribution amount	$ 5,000
Offering period	6 months
ESPP discount percentage from market price, beginning of purchase period	15.00%
Share-based compensation arrangement by share-based payment award, vesting period	6 months
Public warrants
Class of Stock [Line Items]
Stock issued during period, value, new issues			$ 4,600,000	$ 4,600,000
Class of warrant or right, exercise price of warrants or rights (in usd per share)			$ 11.5	$ 11.50
Sponsor Warrants
Class of Stock [Line Items]
Class of warrant or right, outstanding (in shares)			198,000	198,000
Class of warrant or right, rights for half share (usd per share)			$ 5.75	$ 5.75
Class of warrant or right, exercise price of warrants or rights (in usd per share)			$ 11.5	$ 11.50
Fifteen Dollar Exercise Price Warrants
Class of Stock [Line Items]
Class of warrant or right, outstanding (in shares)			600,000	600,000
Class of warrant or right, exercise price of warrants or rights (in usd per share)			$ 15	$ 15.00				$ 15
Merger Warrants
Class of Stock [Line Items]
Class of warrant or right, outstanding (in shares)			631,119	631,119
Class of warrant or right, exercise price of warrants or rights (in usd per share)			$ 12.5	$ 12.50
Additional Merger Warrants
Class of Stock [Line Items]
Class of warrant or right, outstanding (in shares)			946,680	946,680
Class of warrant or right, exercise price of warrants or rights (in usd per share)			$ 11.5	$ 11.50