Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Revenues		$ 64,720	$ 53,333
Cost of revenues		36,109	28,573
Gross margin		28,611	24,760
Research and development expenses		8,819	8,022
Selling, general and administrative expenses		16,389	15,657
Amortization of intangibles		44	66
Income from operations		3,359	1,015
Interest income and other		220	(107)
Income before income taxes		3,579	908
Income tax provision (benefit)		752	(404)
Net income		$ 2,827	$ 1,312
Net income per share - Basic (in usd per share)	[1]	$ 0.40	$ 0.19
Net income per share - Diluted (in usd per share)	[1]	$ 0.39	$ 0.19
Weighted average shares outstanding – Basic, shares		7,028	6,946
Weighted average shares outstanding – Diluted, shares		7,208	7,075

[1] The summation of quarterly per share amounts may not equal the calculation for the full year, as each quarterly calculation is performed discretely.