CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Accumulated other comprehensive loss	Retained earnings
Shareholders' equity, beginning balance (in shares) at Dec. 31, 2018		37,500,815
Shareholders' equity, beginning balance at Dec. 31, 2018	$ 32,571	$ 71	$ 5,390	$ 0	$ 27,110
Increase (Decrease) in Stockholders' Equity
Stock-based compensation - options	578		578
Stock-based compensation - restricted stock	302		302
Exercise of options (in shares)		2,418
Exercise of options	4	$ 4
Shares issued for vesting of restricted stock units (in shares)		539,965
Shares issued for vesting of restricted stock units	0	$ 2,202	(2,202)
Shares repurchased and canceled under the Normal Course Issuer Bid (in shares)		(365,100)
Shares repurchased and canceled under the Normal Course Issuer Bid	(1,522)				(1,522)
Net Income	1,958				1,958
Shareholders' equity, ending balance (in shares) at Mar. 31, 2019		37,678,098
Shareholders' equity, ending balance at Mar. 31, 2019	33,891	$ 2,277	4,068	0	27,546
Shareholders' equity, beginning balance (in shares) at Dec. 31, 2018		37,500,815
Shareholders' equity, beginning balance at Dec. 31, 2018	32,571	$ 71	5,390	0	27,110
Increase (Decrease) in Stockholders' Equity
Change in accumulated other comprehensive loss	(148)
Net Income	3,284
Shareholders' equity, ending balance (in shares) at Jun. 30, 2019		37,697,535
Shareholders' equity, ending balance at Jun. 30, 2019	36,137	$ 2,350	5,063	(148)	28,872
Shareholders' equity, beginning balance (in shares) at Mar. 31, 2019		37,678,098
Shareholders' equity, beginning balance at Mar. 31, 2019	33,891	$ 2,277	4,068	0	27,546
Increase (Decrease) in Stockholders' Equity
Stock-based compensation - options	705		705
Stock-based compensation - restricted stock	329		329
Exercise of options (in shares)		4,725
Exercise of options	18	$ 18
Exercise of warrants (in shares)		8,280
Exercise of warrants	16	$ 16
Shares issued for vesting of restricted stock units (in shares)		6,432
Shares issued for vesting of restricted stock units	0	$ 39	(39)
Change in accumulated other comprehensive loss	(148)			(148)
Net Income	1,326				1,326
Shareholders' equity, ending balance (in shares) at Jun. 30, 2019		37,697,535
Shareholders' equity, ending balance at Jun. 30, 2019	$ 36,137	$ 2,350	5,063	(148)	28,872
Shareholders' equity, beginning balance (in shares) at Dec. 31, 2019	37,952,660	37,952,660
Shareholders' equity, beginning balance at Dec. 31, 2019	$ 43,699	$ 3,366	6,377	(157)	34,113
Increase (Decrease) in Stockholders' Equity
Stock-based compensation - options	891		891
Stock-based compensation - restricted stock	260		260
Exercise of options (in shares)		4,737
Exercise of options	15	$ 15
Shares issued for vesting of restricted stock units (in shares)		529,375
Shares issued for vesting of restricted stock units	0	$ 3,276	(3,276)
Change in accumulated other comprehensive loss	(312)			(312)
Net Income	4,243				4,243
Shareholders' equity, ending balance (in shares) at Mar. 31, 2020		38,486,772
Shareholders' equity, ending balance at Mar. 31, 2020	$ 48,796	$ 6,657	4,252	(469)	38,356
Shareholders' equity, beginning balance (in shares) at Dec. 31, 2019	37,952,660	37,952,660
Shareholders' equity, beginning balance at Dec. 31, 2019	$ 43,699	$ 3,366	6,377	(157)	34,113
Increase (Decrease) in Stockholders' Equity
Exercise of options (in shares)	601,000
Change in accumulated other comprehensive loss	$ (345)
Net Income	$ 23,655
Shareholders' equity, ending balance (in shares) at Jun. 30, 2020	39,082,932	39,082,932
Shareholders' equity, ending balance at Jun. 30, 2020	$ 71,128	$ 8,414	5,448	(502)	57,768
Shareholders' equity, beginning balance (in shares) at Mar. 31, 2020		38,486,772
Shareholders' equity, beginning balance at Mar. 31, 2020	48,796	$ 6,657	4,252	(469)	38,356
Increase (Decrease) in Stockholders' Equity
Stock-based compensation - options	933		933
Stock-based compensation - restricted stock	263		263
Exercise of options (in shares)		596,160
Exercise of options	1,757	$ 1,757
Change in accumulated other comprehensive loss	(33)			(33)
Net Income	$ 19,412				19,412
Shareholders' equity, ending balance (in shares) at Jun. 30, 2020	39,082,932	39,082,932
Shareholders' equity, ending balance at Jun. 30, 2020	$ 71,128	$ 8,414	$ 5,448	$ (502)	$ 57,768