No, they're just coo-ops. And they can be run totally "capitalistically," since only the members of the co-op are engaged in any sharing of resources, and do so voluntarily and even selectively, as it suits them. The government has no involvement, and the larger economy remains untouched.
Socialism is a political creed, and an absolutely demanding one. It requires not merely voluntary cooperation, but forcible mandating of economic redistribution, and the operating of a national or even international economy (in theory) by Big Government tyranny. Central to its creed is that government must totally own "the means of production," which can mean anything, really. And it always results in totalitarianism and death, precisely because it is an ideology that cannot allow for any alternate economic systems, and cannot rely on voluntary participation. It can only be implemented (or sustained) by violence.