Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning Balance at Dec. 31, 2017	$ 41,297	$ 19	$ 150,614	$ (109,281)	$ 70	$ (125)
Beginning Balance (in shares) at Dec. 31, 2017		19,058,685				33,467
Net income (loss)	1,228			1,228
Impact of the adoption of new accounting pronouncement	280			280
Stock-based compensation expense	4,032		4,032
Exercise of stock options	350		350
Exercise of stock options (in shares)		68,698
Issuance of restricted stock	0
Issuance of restricted stock (in shares)		89,915
Tax withholding on restricted stock	(363)		(363)
Shares issued related to acquisitions	822		822
Shares issued related to acquisitions (in shares)		76,998
Foreign currency translation adjustment, net of taxes	(1,063)				(1,063)
Ending Balance at Dec. 31, 2018	46,583	$ 19	155,455	(107,773)	(993)	$ (125)
Ending Balance (in shares) at Dec. 31, 2018		19,294,296				33,467
Net income (loss)	(2,170)			(2,170)
Stock-based compensation expense	3,027		3,027
Exercise of stock options	$ 14		14
Exercise of stock options (in shares)	9,500	9,500
Issuance of restricted stock	$ 0
Issuance of restricted stock (in shares)		162,081
Tax withholding on restricted stock	(304)		(304)
Foreign currency translation adjustment, net of taxes	(308)				(308)
Ending Balance at Dec. 31, 2019	$ 46,842	$ 19	$ 158,192	$ (109,943)	$ (1,301)	$ (125)
Ending Balance (in shares) at Dec. 31, 2019		19,465,877				33,467