As I understand from this brief explanation, the main doctrinal difference was that the Bolsheviks were more radical (class struggle) while the Mensheviks were more in favor of class cooperation and peaceful transition. Is this interpretation correct and were there other doctrinal/ideological differences between the two factions?
In his pamphlet "'Left-Wing' Communism: An Infantile Disorder", Lenin describes the Mensheviks as:
narrow-minded, selfish, case-hardened, covetous, and petty-bourgeoise "labour aristocracy", imperialist-minded and imperialist-corrupted
and goes on to call them "social chauvinists", meaning that they put aside the class struggle at war time in favour of nationalism. He saw the (in this case, the first world) war as an imperialist affair and not something the working class should support.
This is what Wikipedia says:-
Mensheviks generally tended to be more moderate, and more positive towards the liberal opposition and the peasant-based Socialist Revolutionary Party. Factions emerged in 1903 following a dispute in the Russian Social Democratic Labour Party (RSDLP) between Julius Martov and Vladimir Lenin. The dispute originated at the 2nd Congress of the RSDLP, ostensibly over minor issues of party organization. Martov's supporters, who were in the minority in a crucial vote on the question of party membership, came to be called Mensheviks, derived from the Russian word меньшинство (minority), while Lenin's adherents were known as Bolsheviks, from большинство (majority) The RSDLP was a revolutionary socialist political party formed in 1898 in Minsk in Belarus to unite the various revolutionary organisations of the Russian Empire into one party. Those who opposed Lenin and wanted to continue on the Marxist path towards complete socialism and disagreed with his strict party membership guidelines became known as "softs" while Lenin supporters became known as "hards".
So no, according to my research there were no more differences but who wants to go more in-depth can check these Wikipedia pages.