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Note 12 - Revenues | 12 Months Ended
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Dec. 31, 2021
Notes to Financial Statements |
Revenue from Contract with Customer [Text Block] |
| 12. | Revenues
The following table represents a disaggregation of revenue from contracts with customers for the years ended December 31, 2021 and 2020:
|  | Year Ended December 31, |
(in thousands) |  | 2021 |  |  | 2020 |
Instruments, equipment, software and accessories |  | $ | 114,115 |  |  | $ | 97,473 |
Service, maintenance and warranty contracts |  |  | 4,789 |  |  |  | 4,627 |
Total revenues |  | $ | 118,904 |  |  | $ | 102,100 |
Deferred revenue The following tables provide details of deferred revenue as of the periods indicated:
|  | December 31, |
(in thousands) |  | 2021 |  |  | 2020 |
Service contracts |  | $ | 1,976 |  |  | $ | 1,629 |
Customer advances |  |  | 2,290 |  |  |  | 2,142 |
Total deferred revenue |  | $ | 4,266 |  |  | $ | 3,771 |
During each of the years ended December 31, 2021 and 2020, the Company recognized revenue of $2.0 million from contract liabilities existing at December 31, 2020 and 2019. Allowance for Doubtful Accounts Allowance for doubtful accounts is based on the Company’s assessment of the collectability of customer accounts. A rollforward of allowance for doubtful accounts is as follows:
|  | December 31, |
(in thousands) |  | 2021 |  |  | 2020 |
Balance, beginning of period |  | $ | 227 |  |  | $ | 325 |
Bad debt (credit) expense |  |  | (4 | ) |  |  | 17 |
Charge-offs and other |  |  | (87 | ) |  |  | (115 | )
Balance, end of period |  | $ | 136 |  |  | $ | 227 |
Concentrations No customer accounted for more than 10% of the revenues for the years ended December 31, 2021, and 2020. At December 31, 2021 and 2020, no customer accounted for more than 10% of net accounts receivable. Warranties Warranties are estimated and accrued at the time revenues are recorded. A rollforward of the Company’s product warranty accrual is as follows:
|  | December 31, |
(in thousands) |  | 2021 |  |  | 2020 |
Balance, beginning of period |  | $ | 186 |  |  | $ | 252 |
Expense |  |  | 319 |  |  |  | 77 |
(Charges)/Credits |  |  | (265 | ) |  |  | (143 | )
Balance, end of period |  | $ | 240 |  |  | $ | 186 |

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 + Details
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