CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Dec. 31, 2017		12,621,781,000
Balance at Dec. 31, 2017	$ 47,495	$ 2	$ 150,424	$ (103,066)	$ 135
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(5,000)			(5,000)
Other comprehensive (loss) income	82				82
Restricted stock (in shares)		149,015,000
Restricted stock	2,177		2,177
Balance (in shares) at Mar. 31, 2018		12,770,796,000
Balance at Mar. 31, 2018	44,754	$ 2	152,601	(108,066)	217
Balance (in shares) at Dec. 31, 2017		12,621,781,000
Balance at Dec. 31, 2017	47,495	$ 2	150,424	(103,066)	135
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,557)
Other comprehensive (loss) income	(478)
Balance (in shares) at Sep. 30, 2018		12,807,520,000
Balance at Sep. 30, 2018	40,685	$ 2	153,649	(112,623)	(343)
Balance (in shares) at Mar. 31, 2018		12,770,796,000
Balance at Mar. 31, 2018	44,754	$ 2	152,601	(108,066)	217
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,692)			(2,692)
Other comprehensive (loss) income	(459)				(459)
Restricted stock (in shares)		18,243,000
Restricted stock	454		454
Balance (in shares) at Jun. 30, 2018		12,789,039,000
Balance at Jun. 30, 2018	42,057	$ 2	153,055	(110,758)	(242)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,865)			(1,865)
Other comprehensive (loss) income	(101)				(101)
Stock option exercise (in shares)		11,533,000
Stock option exercise	326		326
Restricted stock (in shares)		6,948,000
Restricted stock	268		268
Balance (in shares) at Sep. 30, 2018		12,807,520,000
Balance at Sep. 30, 2018	$ 40,685	$ 2	153,649	(112,623)	(343)
Balance (in shares) at Dec. 31, 2018	14,538,202	14,538,202
Balance at Dec. 31, 2018	$ 81,732	$ 4	197,442	(115,091)	(623)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,020)			(3,020)
Other comprehensive (loss) income	301				301
Stock option exercise (in shares)		18,427
Stock option exercise	565		565
Restricted stock (in shares)		125,769
Restricted stock	471		471
Balance (in shares) at Mar. 31, 2019		14,682,398
Balance at Mar. 31, 2019	$ 80,049	$ 4	198,478	(118,111)	(322)
Balance (in shares) at Dec. 31, 2018	14,538,202	14,538,202
Balance at Dec. 31, 2018	$ 81,732	$ 4	197,442	(115,091)	(623)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(8,302)
Other comprehensive (loss) income	$ (362)
Stock option exercise (in shares)	38,920
Balance (in shares) at Sep. 30, 2019	14,967,128	14,967,128
Balance at Sep. 30, 2019	$ 86,105	$ 4	210,479	(123,393)	(985)
Balance (in shares) at Mar. 31, 2019		14,682,398
Balance at Mar. 31, 2019	80,049	$ 4	198,478	(118,111)	(322)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,618)			(2,618)
Other comprehensive (loss) income	(133)				(133)
Acquisition consideration (in shares)		245,352
Acquisition consideration	10,000		10,000
Stock option exercise (in shares)		2,983
Stock option exercise	92		92
Restricted stock (in shares)		8,729
Restricted stock	692		692
Balance (in shares) at Jun. 30, 2019		14,939,462
Balance at Jun. 30, 2019	88,082	$ 4	209,262	(120,729)	(455)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,664)			(2,664)
Other comprehensive (loss) income	(530)				(530)
Stock option exercise (in shares)		17,511
Stock option exercise	484		484
Restricted stock (in shares)		10,155
Restricted stock	$ 733		733
Balance (in shares) at Sep. 30, 2019	14,967,128	14,967,128
Balance at Sep. 30, 2019	$ 86,105	$ 4	$ 210,479	$ (123,393)	$ (985)