Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities:
Net loss	$ (10,582)	$ (15,030)
Adjustments to reconcile net loss to net cash used in operating activities net of effect of acquisitions
Depreciation and amortization	2,228	1,998
Loss on marketable securities	9	444
Interest expense	0	1,040
Share-based compensation	(109)	941
Provision for doubtful accounts	420	186
Provision for obsolete inventory	261	154
Loss (gain) on sales of assets	(615)	1,192
Deferred income tax	109	224
Goodwill impairment	192	0
Gain on acquisition	(2,819)	0
Changes in certain assets and liabilities:
Accounts receivable	(972)	(72)
Inventory	(1,469)	1,996
Other current assets	520	(571)
Accounts payable	(38)	(3,533)
Related party payables, net	446	94
Accrued commissions	1,216	1,022
Accrued liabilities	3,485	(1,182)
Deferred revenue	2,312	(1,072)
Taxes payable	(1,374)	1,402
Other liabilities	(2,217)	(601)
Net cash used in operating activities	(8,997)	(11,368)
Investing activities:
Capital expenditures	(1,403)	(645)
Deposit on leased asset	0	(4,414)
Proceeds from the sale of property, plant and equipment	1,171	17,263
Purchase of investments available for sale	(18,876)	(3,773)
Sale of marketable securities	16,319	10,518
Proceeds from note receivable	3	0
Acquisitions, net of cash purchased	(3,231)	2
Net cash (used in) provided by investing activities	(6,017)	18,951
Financing activities:
Net borrowings (payments) on long-term debt and revolving credit facility	3,077	(699)
Payments on debt	(704)	(8,996)
Stock issuances	18,357	0
Proceeds from short-term debt issuance	0	1,000
Cash held as collateral	(2,953)	0
Net cash (used in) provided by financing activities	17,777	(8,695)
Effect of exchange rate changes on cash	62	279
Increase in cash	2,825	(833)
Cash and cash equivalents at beginning of period	2,606	3,877
Cash and cash equivalents at end of period	5,431	3,044
Cash paid during the period for:
Interest	1,787	757
Income taxes	$ 1,781	$ 654