Shareholders' Equity, Options and Warrants - Employee Stock Purchase Plan (Details Narrative) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Proceeds from issuance of shares during the period	$ 1,857	$ 1,777	$ 3,438	$ 3,304
Employee Stock Purchase Plan
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Number of shares available for issuance	511,977		511,977
Shares issued during period			68,037	51,439
Proceeds from issuance of shares during the period			$ 3,438	$ 3,304