Restatement of Condensed Consolidated Financials Statements - Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Operating activities:
Net loss	$ (4,038)	$ (4,591)	$ (8,831)	$ (8,367)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities net of effect of acquisitions
Depreciation and amortization			1,053	1,224
Loss (gain) on sale of marketable securities	0	58	(192)	552
Share-based compensation			(1,197)	398
Provision for doubtful accounts			331	140
Gain on sales of assets			(83)	(407)
Deferred income tax	39	45	73	89
Impairment of goodwill	192	0	192	0
Non-cash compensation			201	0
Changes in certain assets and liabilities:
Accounts receivable			(1,034)	(136)
Inventory			1,000	1,182
Other current assets			628	(161)
Accounts payable			(1,139)	(168)
Related party payables			1,268	(277)
Accrued commissions			863	666
Accrued liabilities			2,002	(100)
Deferred revenue			(468)	1,289
Taxes payable			(618)	811
Other liabilities			(450)	(2,187)
Net cash used in operating activities			(6,401)	(5,011)
Investing activities:
Capital expenditures			(332)	(645)
Proceeds from the sale of property, plant and equipment			60	1,831
Purchase of marketable securities			(18,876)	0
Sale of marketable securities			13,901	6,238
Proceeds from note receivable			2	0
Deposit of restricted cash collateral			(2,931)	0
Acquisitions, net of cash purchased			(3,135)	2
Net cash provided by (used in) investing activities			(11,311)	7,426
Financing activities:
Net borrowings on long-term debt and revolving credit facility			3,051	42
Payments on debt			(471)	(2,662)
Stock issuances			18,434	0
Net cash provided by (used in) financing activities			21,014	(2,620)
Effect of exchange rate changes on cash and cash equivalents			(195)	505
Increase in cash and cash equivalents			3,107	300
Cash and cash equivalents at beginning of period			2,606	3,877
Cash and cash equivalents at end of period	5,713	$ 4,177	5,713	4,177
Cash paid during the period for:
Interest			1,164	$ 130
As Previously Reported
Operating activities:
Net loss	(3,419)		(8,464)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities net of effect of acquisitions
Depreciation and amortization			1,308
Loss (gain) on sale of marketable securities			7
Share-based compensation			(1,197)
Provision for doubtful accounts			220
Gain on sales of assets			(83)
Deferred income tax			73
Impairment of goodwill	192		192
Non-cash compensation			0
Changes in certain assets and liabilities:
Accounts receivable			(748)
Inventory			754
Other current assets			5
Accounts payable			522
Related party payables			507
Accrued commissions			737
Accrued liabilities			3,704
Deferred revenue			(491)
Taxes payable			1,077
Other liabilities			(3,798)
Net cash used in operating activities			(5,675)
Investing activities:
Capital expenditures			(407)
Proceeds from the sale of property, plant and equipment			187
Purchase of marketable securities			(18,876)
Sale of marketable securities			13,900
Proceeds from note receivable			1
Deposit of restricted cash collateral			(3,027)
Acquisitions, net of cash purchased			(3,137)
Net cash provided by (used in) investing activities			(11,359)
Financing activities:
Net borrowings on long-term debt and revolving credit facility			3,137
Payments on debt			(477)
Stock issuances			18,357
Net cash provided by (used in) financing activities			21,017
Effect of exchange rate changes on cash and cash equivalents			(153)
Increase in cash and cash equivalents			3,830
Cash and cash equivalents at beginning of period			2,606
Cash and cash equivalents at end of period	6,436		6,436
Cash paid during the period for:
Interest			595
Restatement Adjustments | Accounting Adjustments Errors from Prior Year
Operating activities:
Net loss	(619)		(367)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities net of effect of acquisitions
Depreciation and amortization			(255)
Loss (gain) on sale of marketable securities			(199)
Share-based compensation			0
Provision for doubtful accounts			111
Gain on sales of assets			0
Deferred income tax			0
Impairment of goodwill	0		0
Non-cash compensation			201
Changes in certain assets and liabilities:
Accounts receivable			(286)
Inventory			246
Other current assets			623
Accounts payable			(1,661)
Related party payables			761
Accrued commissions			126
Accrued liabilities			(1,702)
Deferred revenue			23
Taxes payable			(1,695)
Other liabilities			3,348
Net cash used in operating activities			(726)
Investing activities:
Capital expenditures			75
Proceeds from the sale of property, plant and equipment			(127)
Purchase of marketable securities			0
Sale of marketable securities			1
Proceeds from note receivable			1
Deposit of restricted cash collateral			96
Acquisitions, net of cash purchased			2
Net cash provided by (used in) investing activities			48
Financing activities:
Net borrowings on long-term debt and revolving credit facility			(86)
Payments on debt			6
Stock issuances			77
Net cash provided by (used in) financing activities			(3)
Effect of exchange rate changes on cash and cash equivalents			(42)
Increase in cash and cash equivalents			(723)
Cash and cash equivalents at beginning of period			0
Cash and cash equivalents at end of period	(723)		(723)
Cash paid during the period for:
Interest			569
Reclassification Adjustments | Accounting Adjustments Errors from Prior Year
Operating activities:
Net loss	0		0
Adjustments to reconcile net loss to net cash provided by (used in) operating activities net of effect of acquisitions
Depreciation and amortization			0
Loss (gain) on sale of marketable securities			0
Share-based compensation			0
Provision for doubtful accounts			0
Gain on sales of assets			0
Deferred income tax			0
Impairment of goodwill	0		0
Non-cash compensation			0
Changes in certain assets and liabilities:
Accounts receivable			0
Inventory			0
Other current assets			0
Accounts payable			0
Related party payables			0
Accrued commissions			0
Accrued liabilities			0
Deferred revenue			0
Taxes payable			0
Other liabilities			0
Net cash used in operating activities			0
Investing activities:
Capital expenditures			0
Proceeds from the sale of property, plant and equipment			0
Purchase of marketable securities			0
Sale of marketable securities			0
Proceeds from note receivable			0
Deposit of restricted cash collateral			0
Acquisitions, net of cash purchased			0
Net cash provided by (used in) investing activities			0
Financing activities:
Net borrowings on long-term debt and revolving credit facility			0
Payments on debt			0
Stock issuances			0
Net cash provided by (used in) financing activities			0
Effect of exchange rate changes on cash and cash equivalents			0
Increase in cash and cash equivalents			0
Cash and cash equivalents at beginning of period			0
Cash and cash equivalents at end of period	$ 0		0
Cash paid during the period for:
Interest			$ 0