Consolidated Statement of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Beginning Balance (in shares) at Dec. 31, 2013		1,851,319
Beginning Balance at Dec. 31, 2013	$ (15,882)	$ 0	$ 0	$ (773)	$ (15,109)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon conversion of preferred stock (in shares)		6,834,476
Issuance of common stock upon conversion of preferred stock	52,313	$ 1	52,312
Issuance of stock (in shares)		3,846,154
Issuance of stock	38,846	$ 1	38,845
Issuance of common stock to related party (Note 17) (in shares)		1,803,574
Issuance of common stock to related party (Note 16)	11,219		11,219
Issuance of common stock in business combination (in shares)		577,486
Issuance of common stock in business combination	6,146		6,146
Issuance of restricted stock (in shares)		335,673
Exercise of stock options (in shares)		436
Exercise of stock options	1		1
Accretion of preferred stock	(70)		(70)
Preferred stock dividends	(1,454)		(1,454)
Stock-based compensation	729		729
Conversion of warrants from preferred to common	609		609
Other comprehensive loss	(943)			(943)
Net loss	(20,117)				(20,117)
Ending Balance (in shares) at Dec. 31, 2014		15,249,118
Ending Balance at Dec. 31, 2014	71,397	$ 2	108,337	(1,716)	(35,226)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock (in shares)		0
Issuance of stock	(44)		(44)
Issuance of common stock in business combination (in shares)		233,679
Issuance of common stock in business combination	1,386		1,386
Stock-based compensation	2,741		2,741
Issuance of stock under Company plans, net of shares withheld for tax (in shares)		263,491
Issuance of stock under Company plans, net of shares withheld for tax	27		27
Other comprehensive loss	(1,573)			(1,573)
Net loss	$ (13,664)				(13,664)
Ending Balance (in shares) at Dec. 31, 2015	15,746,288	15,746,288
Ending Balance at Dec. 31, 2015	$ 60,270	$ 2	112,447	(3,289)	(48,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in business combination (in shares)		1,344,463
Issuance of common stock in business combination	8,300		8,300
Stock-based compensation	4,333		4,333
Issuance of stock under Company plans, net of shares withheld for tax (in shares)		694,537
Issuance of stock under Company plans, net of shares withheld for tax	(514)		(514)
Other comprehensive loss	137			137
Net loss	$ (13,513)				(13,513)
Ending Balance (in shares) at Dec. 31, 2016	17,785,288	17,785,288
Ending Balance at Dec. 31, 2016	$ 59,013	$ 2	$ 124,566	$ (3,152)	$ (62,403)