CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net loss	$ (39,220)	$ (17,903)
Adjustments to reconcile net loss to net cash used in operating activities:
Gain on sale of discontinued operations		(459)
Earn-out consideration		3,510
Depreciation and amortization	3,148	3,015
Impairment of goodwill and long-lived assets	8,771
Accretion of interest to payment obligation	536	432
Amortization of debt issuance costs	408	2,099
Stock-based compensation expense	4,667	2,163
Modification of equity awards		350
Loss on disposal of fixed assets	17	7
Changes in operating assets and liabilities:
Accounts receivable	5,450	(1,472)
Inventories	(5,858)	(710)
Prepaid expenses and other assets	196	(168)
Accounts payable	(1,890)	115
Payment obligation liability	(1,157)	(973)
Deferred revenue	1,009	(199)
Accrued expenses and other liabilities	920	(1,540)
Net cash used in operating activities	(23,003)	(11,733)
Cash flows from investing activities:
Capital expenditures	(341)	(1,311)
Proceeds (net cash disposed of) related to sale of businesses		1,395
Net cash provided by (used in) investing activities	(341)	84
Cash flows from financing activities:
Proceeds from issuance of debt	4,000	16,000
Payment of debt issue costs		(601)
Proceeds from capital raise, net of issuance costs		35,755
Proceeds from issuance of common stock under employee stock purchase plan and option and warrant exercises	46	904
Payments on financial liabilities		(8,354)
Repurchase of common stock	(1,915)	(1,795)
Net cash provided by financing activities	2,131	41,909
Effect of exchange rates on cash	1,333	1,176
Net (decrease) increase in cash	(19,880)	31,436
Cash of continuing operations, at beginning of period	36,547	5,095
Add: Cash of discontinued operations, at beginning of period		16
Cash of continuing operations, at end of period	16,667	36,547
Supplemental disclosures of cash flow information:
Cash paid for interest	1,364	1,528
Cash paid for income taxes	135	353
Non-cash investing and financing activities:
Common stock issued to settle earn-out obligation	3,510
Common stock issued to acquire share of noncontrolling interest	1,216
Common stock issued in connection with stock bonus and incentive plans		428
Stock option grants issued in connection with stock bonus and incentive plans		68
Property and equipment included in accrued expenses and other liabilities	$ 333	$ 30