XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.21.2

Note 15 - Incentive Plans (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2021
Notes Tables |
Schedule of Defined Benefit Plans Disclosures [Table Text Block] |
Projected benefit obligation |  | $ | (73,081) |
Fair value of plan assets |  |  | 74,025 |
Funded status (included in Other assets) |  | $ | 944 |
Defined Benefit Plan, Assumptions [Table Text Block] |
Discount rate |  |  | 2.52 | %
Salary scale increases |  |  | 3.50 | %
Interest credit rate for cash balance plan |  |  | 4.50 | %
Defined Benefit Plan, Plan Assets, Allocation [Table Text Block] |
|  | Fair Value |  |  | Asset Allocation |
Cash and short-term investments |  | $ | 44,563 |  |  |  | 60 | %
Large company funds |  |  | 11,946 |  |  |  | 16 | %
Fixed income funds |  |  | 7,467 |  |  |  | 10 | %
International funds |  |  | 3,247 |  |  |  | 5 | %
Growth funds |  |  | 2,364 |  |  |  | 3 | %
Small company funds |  |  | 2,225 |  |  |  | 3 | %
Mid company funds |  |  | 2,213 |  |  |  | 3 | %
Total |  | $ | 74,025 |  |  |  | 100 | %

X
- Definition Tabular disclosure of investment allocation of defined benefit plan assets. Includes, but is not limited to, investment allocation percentage or range of percentages. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanPlanAssetsAllocationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details
Name: | us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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