CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
CONSOLIDATED STATEMENTS COMPREHENSIVE INCOME (LOSS)
Revenue, net	$ 6,888	$ 7,305
Cost of revenue	2,986	3,995
Gross profit	3,902	3,310
Operating expenses:
Engineering, research and development	918	916
Selling, general and administrative	2,874	2,608
Total operating expenses	3,792	3,524
Income (loss) from operations	110	(214)
Other income (expense):
Other income (expense), net	(92)	39
Income (loss) before income taxes	18	(175)
Income tax expense (benefit)	(95)	282
Net income (loss)	$ 113	$ (457)
Earnings (loss) per share, basic	$ 0.02	$ (0.07)
Earnings Per Share, Diluted	$ 0.02	$ (0.07)
Weighted average common shares outstanding - basic	6,586	6,543
Weighted average common shares outstanding - diluted	6,599	6,581

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227