XML 57 R42.htm IDEA: XBRL DOCUMENT
v3.20.4

Note 15 - Supplemental Cash Flow Information (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
($ in thousands) |  | 2020 |  |  | 2019 |
Interest paid |  | $ | 151 |  |  | $ | 120 |
Federal, state, and local income taxes paid, net |  | $ | 4,669 |  |  | $ | 5,327 |
Change in contract receivables, net |  | $ | (424 | ) |  | $ | (2,144 | )
Change in contract liabilities, net |  | $ | 836 |  |  | $ | 2,144 |
Property, plant, and equipment purchases in accounts payable |  | $ | 2,316 |  |  | $ | 2,460 |

X
- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock
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