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Significant Customers and Contingencies (Detail Narratives) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2019 | Mar. 31, 2019
Accounts receivable | $ 970 | $ 829 |  |
Finished goods inventory | $ 1,170 | 1,243 |  |
BASF [Member] |  |  |  |
Equipment sale - original book value of equipment and upgrades | 30.00% |  |  |
Equipment sale - net book value equipment | 115.00% |  |  |
BASF [Member] | Greater than [Member] |  |  |  |
Cash, cash equivalents and investments trigger under supply agreeement |  |  | $ 1,000 |
Accelerated debt maturity - principal amount debt | $ 10,000 |  |  |
Finished goods inventory |  |  |  | $ 500
BASF [Member] | Less than [Member] |  |  |  |
Cash, cash equivalents and investments trigger under supply agreeement | 500 |  |  |
Customers One [Member] |  |  |  |
Accounts receivable | 449 | 316 |  |
Customers Two [Member] |  |  |  |
Accounts receivable | $ 16 | $ 74 |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |  |
Revenue from customers | 63.00% |  |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Customers One [Member] |  |  |  |
Revenue from customers | 63.00% | 74.00% |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Customers Two [Member] |  |  |  |
Revenue from customers | 8.00% | 7.00% |  |

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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4531-111522 + Details
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- Definition Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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