XML 37 R23.htm IDEA: XBRL DOCUMENT
v3.20.4

Note 1 - Organization and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Notes Tables |
Property, Plant and Equipment [Table Text Block] |
(in thousands) |  | Useful life in years |  |  | 2020 |  |  | 2019 |
Machinery and equipment |  |  | 3 | - | 5 |  |  | $ | 11,793 |  |  | $ | 4,995 |
Furniture and fixtures |  |  | 5 | - | 7 |  |  |  | 210 |  |  |  | 203 |
Building |  |  |  | 39 |  |  |  |  | 306 |  |  |  | 301 |
|  |  |  |  |  |  |  |  | 12,309 |  |  |  | 5,499 |
Accumulated depreciation |  |  |  |  |  |  |  |  | (5,395 | ) |  |  | (3,322 | )
Property and equipment, net |  |  |  |  |  |  |  | $ | 6,914 |  |  | $ | 2,177 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
Year ended December 31, |  | 2020 |  |  | 2019 |
Risk free interest rate |  |  | N/A |  |  |  | 2.58 | %
Expected life of option in years |  |  | N/A |  |  |  | 10 |
Expected dividend yield rate |  |  | N/A |  |  |  | 0 | %
Expected volatility |  |  | N/A |  |  |  | 51 | %

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + 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(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration