Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net sales	$ 4,659	$ 4,106
Cost of sales	3,843	3,545
Gross profit	816	561
Operating expenses:
Product development	629	771
Selling, general, and administrative	2,647	3,631
Restructuring	(50)	674
Total operating expenses	3,226	5,076
Loss from operations	(2,410)	(4,515)
Other expenses (income):
Interest expense	1	0
Other (income) expense	(21)	7
Loss from operations before income taxes	(2,390)	(4,522)
Provision for income taxes	0	0
Net loss	$ (2,390)	$ (4,522)
Net loss per share - basic and diluted (in dollars per share)	$ (0.20)	$ (0.39)
Weighted average shares used in computing net loss per share:
Basic and diluted (in shares)	11,900	11,718

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Name:	us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

No definition available.