Organization and Summary Of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Cash, FDIC insured amount	$ 250,000		$ 250,000
Cash uninsured amount	18,125,000		18,125,000		$ 7,740,000
Allowance for doubtful accounts receivable, current	24,000		24,000		$ 80,000
Advertising and promotion expense	$ 75,000	$ 188,000	$ 344,000	$ 728,000
UNITED STATES
Reveune percent	100.00%	91.00%	99.00%	86.00%
Accounts Receivable [Member]
Reveune percent			3.00%		74.00%
Customer [Member] \| Accounts Receivable [Member] \| UNITED STATES
Reveune percent			10.00%	0.00%
UNITED STATES \| Customer [Member] \| Revenue [Member]
Reveune percent	30.00%	70.00%	19.00%	64.00%

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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