Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Cash flows from operating activities:
Net loss	$ (2,524)		$ (802)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	17		15
Stock-based compensation	42		13
Fair value of warrants issued to employees for bonuses	244
Fair value of warrants issued to service providers	18
Revaluation of fair value of warrant liability			(21)
Non-cash interest expense	48		123
Changes in assets and liabilities:
Accounts receivable	(29)
Inventory	(36)		22
Prepaid expenses and other current assets	(6)		25
Other noncurrent assets	(4)		14
Accounts payable	196		76
Accrued liabilities	360		(39)
Net cash used in operating activities	(1,674)		(574)
Cash flows from financing activities:
Proceeds from note payable	1,000
Proceeds from related party convertible bridge notes			200
Net cash provided by financing activities	1,000		200
Net decrease in cash and cash equivalents	(674)		(374)
Cash and cash equivalents - beginning of period	895	[1]	430
Cash and cash equivalents - end of period	221		56
Supplemental disclosure:
Cash paid for interest	35		35
Cash paid for income taxes	$ 1		$ 1

[1] The condensed consolidated balance sheet as of December 31, 2014 has been derived from the audited financial statements as of that date.