Condensed Consolidated Statements of Operations - Unaudited - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
REVENUES	$ 6,632	$ 5,945
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember
Costs and expenses:
Manufacturing cost of sales	$ 4,215	$ 3,716
Engineering, selling and administrative	1,983	2,071
OPERATING INCOME	434	158
Other Income:
Interest income, net	1	12
Other income, net	153	24
Total Other Income, Net	154	36
INCOME BEFORE INCOME TAXES	588	194
Income tax expense	6	1
NET INCOME	$ 582	$ 193
Basic per share information:
Weighted average shares outstanding	4,838,568	4,696,415
Net income	$ 0.12	$ 0.04
Diluted per share information:
Weighted average shares outstanding	4,959,636	4,806,196
Net income	$ 0.12	$ 0.04

The aggregate total costs related to engineering a product design and manufacture, selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

No definition available.