XML 32 R19.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Schedule II. - VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
--- | ---
Dec. 31, 2021
Schedule II. - VALUATION AND QUALIFYING ACCOUNTS |
Schedule II. - VALUATION AND QUALIFYING ACCOUNTS | Schedule II. - VALUATION AND QUALIFYING ACCOUNTS ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year ended December 31, |  | Balance at beginning of year |  | Charged to costs and expenses (F1) |  | Deductions (F1) |  | Other |  | Balance at end of year |
2019 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for doubtful accounts | ​ | $ | 245 | ​ | $ | 189 | ​ | $ | (334) | ​ | $ | — | ​ | $ | 100 | ​
2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for doubtful accounts | ​ | $ | 100 | ​ | $ | 159 | ​ | $ | (148) | ​ | $ | — | ​ | $ | 111 | ​
2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for doubtful accounts | ​ | $ | 111 | ​ | $ | 245 | ​ | $ | (174) | ​ | $ | — | ​ | $ | 182 | ​
(F1) The Company reviews receivables monthly and, accordingly, adjusts the allowance for doubtful accounts monthly. The Company records write-offs annually. The amount charged to costs and expenses reflects the bad debt expense recorded in the consolidated statements of income, while the amount recorded for deductions reflects the adjustment to actual allowance for doubtful accounts reserve at the end of the period.

X
- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
Name: | srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock
Namespace Prefix: | srt_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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