Statement Of Changes In Equity [Abstract]

Herti AD - Filing #6023296

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through transfer to statutory reserve, equity	115,000 BGN	- BGN	115,000 BGN	- BGN	- BGN	- BGN	- BGN	- BGN	- BGN	- BGN	73,000 BGN	- BGN	73,000 BGN	- BGN
Increase (decrease) through appropriation of retained earnings, equity	1 134 BGN	- BGN	- BGN	- BGN	- BGN	1 134 BGN	- BGN	- BGN	- BGN	- BGN	693,000 BGN	- BGN	- BGN	693,000 BGN