CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Ordinary Shares	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2019		21,486,059
Beginning balance at Dec. 31, 2019	$ 15,145	$ 215	$ 40,862	$ (23,024)	$ (2,908)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	694			694
Foreign currency translation adjustments	(1,320)				(1,320)
Share-based compensation expense	295		295
Issuance of ordinary shares upon exercise of stock options (in shares)		64,908
Issuance of ordinary shares upon exercise of stock options	87	$ 1	86
Ending balance (in shares) at Mar. 31, 2020		21,550,967
Ending balance at Mar. 31, 2020	14,901	$ 216	41,243	(22,330)	(4,228)
Beginning balance (in shares) at Dec. 31, 2019		21,486,059
Beginning balance at Dec. 31, 2019	15,145	$ 215	40,862	(23,024)	(2,908)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(8,975)
Foreign currency translation adjustments	(1,279)
Ending balance (in shares) at Jun. 30, 2020		29,660,260
Ending balance at Jun. 30, 2020	64,372	$ 295	102,788	(34,524)	(4,187)
Beginning balance (in shares) at Mar. 31, 2020		21,550,967
Beginning balance at Mar. 31, 2020	14,901	$ 216	41,243	(22,330)	(4,228)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,669)			(9,669)
Foreign currency translation adjustments	41				41
Share-based compensation expense	4,225		4,225
Issuance of ordinary shares upon exercise of stock options (in shares)		678,613
Issuance of ordinary shares upon exercise of stock options	2,110	$ 6	2,104
Issuance of restricted stock units (in shares)		93,680
Restricted stock activity	0
Proceeds from issuance of shares in initial public offering, net of issuance costs of $7075 (in shares)		7,337,000
Proceeds from issuance of shares in initial public offering, net of issuance costs of $7,075	55,289	$ 73	55,216
Cash consideration paid to GAN plc shareholders	(2,525)			(2,525)
Ending balance (in shares) at Jun. 30, 2020		29,660,260
Ending balance at Jun. 30, 2020	$ 64,372	$ 295	102,788	(34,524)	(4,187)
Beginning balance (in shares) at Dec. 31, 2020	36,635,362	36,635,362
Beginning balance at Dec. 31, 2020	$ 155,564	$ 365	203,842	(45,766)	(2,877)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(4,464)			(4,464)
Foreign currency translation adjustments	(9,481)				(9,481)
Share-based compensation expense	1,632		1,632
Issuance of ordinary shares upon exercise of stock options (in shares)		108,222
Issuance of ordinary shares upon exercise of stock options	315	$ 1	314
Issuance of ordinary shares as partial consideration of Coolbet acquisition (Note 4) (in shares)		5,260,516
Issuance of ordinary shares as partial consideration in Coolbet acquisition (Note 4)	106,683	$ 53	106,630
Fair value of replacement equity awards issued as consideration in Coolbet acquisition (Note 4)	297		297
Ending balance (in shares) at Mar. 31, 2021		42,004,100
Ending balance at Mar. 31, 2021	$ 250,546	$ 419	312,715	(50,230)	(12,358)
Beginning balance (in shares) at Dec. 31, 2020	36,635,362	36,635,362
Beginning balance at Dec. 31, 2020	$ 155,564	$ 365	203,842	(45,766)	(2,877)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(7,194)
Foreign currency translation adjustments	$ (7,044)
Issuance of ordinary shares upon exercise of stock options (in shares)	114,618
Ending balance (in shares) at Jun. 30, 2021	42,015,674	42,015,674
Ending balance at Jun. 30, 2021	$ 252,594	$ 420	315,055	(52,960)	(9,921)
Beginning balance (in shares) at Mar. 31, 2021		42,004,100
Beginning balance at Mar. 31, 2021	250,546	$ 419	312,715	(50,230)	(12,358)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,730)			(2,730)
Foreign currency translation adjustments	2,437				2,437
Share-based compensation expense	2,319		2,319
Issuance of ordinary shares upon exercise of stock options (in shares)		6,396
Issuance of ordinary shares upon exercise of stock options	22	$ 0	22
Issuance of restricted stock units (in shares)		5,178
Restricted stock activity	$ 0	$ 1	(1)
Ending balance (in shares) at Jun. 30, 2021	42,015,674	42,015,674
Ending balance at Jun. 30, 2021	$ 252,594	$ 420	$ 315,055	$ (52,960)	$ (9,921)