XML 67 R38.htm IDEA: XBRL DOCUMENT
v3.19.2

TRADE ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2019
Accounts Receivable, after Allowance for Credit Loss [Abstract] |
Changes in the allowance for doubtful accounts |
|  | For the Year Ended June 30, |
|  | 2019 |  |  | 2018 |
Beginning |  | $ | 259 |  |  | $ | 247 |
Additions charged to expenses |  |  | 94 |  |  |  | 8 |
Recovered |  |  | (84 | ) |  |  | (1 | )
Write-off |  |  | - |  |  |  | - |
Currency translation effect |  |  | (6 | ) |  |  | 5 |
Ending |  | $ | 263 |  |  | $ | 259 |

X
- Definition Custom Element. + References No definition available. + Details
Name: | TRT_ChangesInAllowanceForDoubtfulAccountsTableTextBlock
Namespace Prefix: | TRT_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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