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| 0001564590-22-012597-index.html | 2022-03-30 16:06:26 | |
| 0001564590-22-012597.txt | 2022-03-30 16:06:26 | |
 0001564590-22-012597-xbrl.zip | 189183 | 2022-03-30 16:06:26 |
| acu-10k_20211231.htm | 2094262 | 2022-03-30 16:06:26 |
| acu-10k_20211231_htm.xml | 1828557 | 2022-03-30 16:06:26 |
| acu-20211231.xsd | 53486 | 2022-03-30 16:06:26 |
| acu-20211231_cal.xml | 74499 | 2022-03-30 16:06:26 |
| acu-20211231_def.xml | 165199 | 2022-03-30 16:06:26 |
| acu-20211231_lab.xml | 436709 | 2022-03-30 16:06:26 |
| acu-20211231_pre.xml | 320590 | 2022-03-30 16:06:26 |
| acu-ex21_12.htm | 7373 | 2022-03-30 16:06:26 |
| acu-ex231_7.htm | 3199 | 2022-03-30 16:06:26 |
| acu-ex311_6.htm | 6829 | 2022-03-30 16:06:26 |
| acu-ex312_10.htm | 6654 | 2022-03-30 16:06:26 |
| acu-ex321_8.htm | 15270 | 2022-03-30 16:06:26 |
| acu-ex322_9.htm | 15209 | 2022-03-30 16:06:26 |
| FilingSummary.xml | 39937 | 2022-03-30 16:06:26 |
| Financial_Report.xlsx | 84973 | 2022-03-30 16:06:26 |
| MetaLinks.json | 664713 | 2022-03-30 16:06:26 |
| R1.htm | 69778 | 2022-03-30 16:06:26 |
| R10.htm | 24730 | 2022-03-30 16:06:26 |
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| report.css | 2767 | 2022-03-30 16:06:26 |
| Show.js | 1085 | 2022-03-30 16:06:26 |