Nature Of Operations And Summary Of Significant Accounting Policies (Narrative) (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020 USD ($) shares	Jun. 30, 2019 USD ($) shares	Jun. 30, 2020 USD ($) item customer shares	Jun. 30, 2019 USD ($) shares	Dec. 31, 2019 USD ($) customer shares	Dec. 31, 2018 USD ($)
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of operating subsidiaries | item			2
Cash and cash equivalents	$ 4,310	$ 138	$ 4,310	$ 138	$ 5,969	$ 991
Working capital	7,000		7,000
Net cash used in operating activities			1,792	1,523
Revenue	3,098	3,489	5,890	6,313
Slotting fees and promotion allowances	407	506	$ 704	834
Customers payment from receipt of invoice period			30 days
Allowances for doubtful accounts	113		$ 113		44
Impairment losses			0		$ 0
Shipping and Handling [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Revenue	$ 22	$ 13	$ 38	$ 44
Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Discounts for certain customers for payments made within 15 days			2.00%
Warrant [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Anti-dilutive shares | shares	15,000,000	0	15,000,000	0
One Major Customer [Member] | Outstanding Accounts Receivable [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of customers | customer			1
Customer, percentage			18.00%
Two Major Customers [Member] | Outstanding Accounts Receivable [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of customers | customer					2
Customer, percentage					26.00%
Stock Options [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Stock options outstanding, shares | shares	3,592,913	3,760,885	3,592,913	3,760,885	3,495,601
Convertible Stock [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Unvested restricted stock units, shares | shares	30,304		30,304
Shares issuable upon conversion of convertible notes | shares			5,233,116	7,494,378
Restricted Stock [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Unvested restricted stock units, shares | shares	30,304	314,390	30,304	314,390	149,824