| **Note 17 - Segment and Geographic Information (Details) - Operating Segment Data (USD $)In Thousands, unless otherwise specified**                                                                                                                                                                           | 12 Months Ended |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------|
||
| **Segment Reporting Information [Line Items]**                                                                                                                                                                                                                                                                |            |  |   |  |
| Operating income (loss) before depreciation and amortization                                                                                                                                                                                                                                                  | $ (4,735)       |  |   |  |
| Depreciation and amortization                                                                                                                                                                                                                                                                                 | (2,913)         |  | (919) |  |
| Operating income (loss)                                                                                                                                                                                                                                                                                       | (7,648)         |  | (3,749) |  |
| Revenue                                                                                                                                                                                                                                                                                                       | 47,407          | [1] | 30,222 | [1] |
| Hego [Member]                                                                                                                                                                                                                                                                                                 |            |  |   |  |
| **Segment Reporting Information [Line Items]**                                                                                                                                                                                                                                                                |            |  |   |  |
| Operating income (loss) before depreciation and amortization                                                                                                                                                                                                                                                  | 1,950           |  |   |  |
| Depreciation and amortization                                                                                                                                                                                                                                                                                 | (2,095)         |  |   |  |
| Operating income (loss)                                                                                                                                                                                                                                                                                       | (145)           |  |   |  |
| Revenue                                                                                                                                                                                                                                                                                                       | 12,961          |  |   |  |
| Chyron [Member]                                                                                                                                                                                                                                                                                               |            |  |   |  |
| **Segment Reporting Information [Line Items]**                                                                                                                                                                                                                                                                |            |  |   |  |
| Operating income (loss) before depreciation and amortization                                                                                                                                                                                                                                                  | 5,781           |  |   |  |
| Depreciation and amortization                                                                                                                                                                                                                                                                                 | (818)           |  |   |  |
| Operating income (loss)                                                                                                                                                                                                                                                                                       | 4,963           |  |   |  |
| Revenue                                                                                                                                                                                                                                                                                                       | 34,446          |  |   |  |
| Corporate Segment [Member]                                                                                                                                                                                                                                                                                    |            |  |   |  |
| **Segment Reporting Information [Line Items]**                                                                                                                                                                                                                                                                |            |  |   |  |
| Operating income (loss) before depreciation and amortization                                                                                                                                                                                                                                                  | (12,466)        |  |   |  |
| Operating income (loss)                                                                                                                                                                                                                                                                                       | $ (12,466)      |  |   |  |
|                                                                                                                                                                                                                                                                                                               |
| [1]Included in North America revenues are $25.1 million of revenues from external customers in the United States and included in EMEA revenues are $7.8 million of revenues from external customers in Sweden. No revenues from any other individual country makes up more than 10% of consolidated revenues. |

| X                                                                                                                                                                                                                                                                                                                       |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of operating income (loss) before depreciation and amortization.
+ References
No definition available.
+ Details**Name:**chyr_OperatingIncomelossBeforeDepreciationAndAmortization**Namespace Prefix:**chyr_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585
+ Details**Name:**us-gaap_DepreciationDepletionAndAmortization**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The net result for the period of deducting operating expenses from operating revenues.
+ References
No definition available.
+ Details**Name:**us-gaap_OperatingIncomeLoss**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5
+ Details**Name:**us-gaap_Revenues**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                        |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_SegmentReportingInformationLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |