CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance (in shares) at Dec. 31, 2018		19,383,000
Balance at Dec. 31, 2018	$ 136,435	$ 97	$ 144,013	$ (86)	$ (7,589)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation, net of shares withheld for tax payments (in shares)		29,000
Stock-based compensation, net of shares withheld for tax payments	418		418
Unrealized gain (loss) on derivative financial instruments, net of tax	(47)			(47)
Net income (loss)	(7,364)				(7,364)
Balance (in shares) at Mar. 31, 2019		19,412,000
Balance at Mar. 31, 2019	$ 129,285	$ 97	144,274	(133)	(14,953)
Balance (in shares) at Dec. 31, 2019	19,545,308	19,496,000
Balance at Dec. 31, 2019	$ 125,305	$ 97	145,923	(207)	(20,508)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation, net of shares withheld for tax payments (in shares)		40,000
Stock-based compensation, net of shares withheld for tax payments	447		447
Unrealized gain (loss) on derivative financial instruments, net of tax	(167)			(167)
Tax payments related to stock-based awards	(270)		(270)
Net income (loss)	$ 598				598
Balance (in shares) at Mar. 31, 2020	19,495,907	19,545,000
Balance at Mar. 31, 2020	$ 126,006	$ 98	$ 146,192	$ (374)	$ (19,910)