Equity Incentive Plans (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended				12 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2014	Aug. 31, 2012	Dec. 31, 2019	Jun. 30, 2018	May 31, 2010	May 31, 2007	May 31, 2005
Adaptive Micro Ware Inc [Member]
Equity Incentive Plans (Textual)
Warrant to purchase				100
Warrant exercisable per share				$ 1.09
Warrant vested, description				The warrant vested one-third (1/3) on May 23, 2013, one-third (1/3) on May 23, 2014 and one-third (1/3) on May 23, 2015.
Warrant to purchase term				10 years
Employee Stock Option [Member]
Equity Incentive Plans (Textual)
Stock price					$ 0.76
Common stock to its employees and directors					438
Fair value option					$ 339
Restricted Stock [Member]
Equity Incentive Plans (Textual)
Common stock to its employees and directors
2016 Employee Equity Incentive Plan [Member] | Stock Appreciation Rights (SARs) [Member]
Equity Incentive Plans (Textual)
Common stock shares increased	250
2016 Employee Equity Incentive Plan [Member] | Employee Stock Option [Member]
Equity Incentive Plans (Textual)
Maximum equity based shares authorized		1,000
Employee plan expiry date		Feb. 04, 2026
Common stock shares increased	100
2016 Director Equity Incentive Plan [Member]
Equity Incentive Plans (Textual)
Maximum equity based shares authorized		400
Employee plan expiry date		Feb. 04, 2026
2005 Employee Equity Incentive Plan [Member]
Equity Incentive Plans (Textual)
Maximum equity based shares authorized			2,600			2,700	1,600	1,100	500
Restatement of employee plan extend term			Feb. 07, 2024
2005 Director Equity Incentive Plan [Member]
Equity Incentive Plans (Textual)
Maximum equity based shares authorized			600				400		200
Restatement of employee plan extend term			Feb. 07, 2024
2016 Employee Plan [Member]
Equity Incentive Plans (Textual)
Maximum equity based shares authorized						3,000