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Equity - Additional Information (Details)											12 Months Ended
Equity - Additional Information (Details)	Sep. 04, 2019 shares	Aug. 16, 2019 shares	Jan. 04, 2019 shares	Dec. 11, 2018 director shares	Aug. 03, 2018 shares	Mar. 15, 2018 shares	Feb. 27, 2018 shares	Jan. 08, 2018 shares	Dec. 07, 2016 shares	Jul. 21, 2014 shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	May 30, 2019 shares	Jul. 15, 2014 $ / shares
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) \| $ / shares											$ 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) \| $ / 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 (usd per share) \| $ / shares												$ 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, exercises in period (in shares)									282,900
Share-based compensation arrangement by share-based payment award, options, outstanding, number (in shares)											0	17,100
RSU \| 2016 Omnibus Incentive Plan
Class of Stock [Line Items]
Granted, awards (in shares)											274,851	142,881
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]
Stock issued during period, shares, new issues (in shares)	40,993	4,832	50,222	2,133	48,529	4,264	23,225
Number of directors \| director				1
Granted, awards (in shares)											268,851	81,574
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 (usd per share) \| $ / shares											$ 15	$ 15
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) \| $ / shares											$ 5.75	$ 5.75
Class of warrant or right, exercise price of warrants or rights (usd per share) \| $ / shares											$ 11.50	$ 11.50		$ 15
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 (usd per share) \| $ / shares											$ 15.00	$ 15.00
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 (usd per share) \| $ / shares											$ 12.50	$ 12.50
Share-based compensation arrangement by share-based payment award, options, exercises in period (in shares)								33,069
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 (usd per share) \| $ / shares											$ 11.50	$ 11.50
Share-based compensation arrangement by share-based payment award, options, exercises in period (in shares)								49,604
Common Stock
Class of Stock [Line Items]
Stock issued during period, shares, new issues (in shares)								10,627
Common Stock \| Unit Purchase Options
Class of Stock [Line Items]
Stock issued during period, shares, new issues (in shares)									121,173