Studios in the minor leagues of the industry, such as Columbia Pictures and Film Booking Offices of America (FBO), focused on exactly those sorts of cheap productions. Their movies, with relatively short running times, targeted theaters that had to economize on rental and operating costs, particularly small-town and urban neighborhood venues, or "nabes". Even smaller production houses, known as Poverty Row studios, made films whose costs might run as low as $3,000, seeking a profit through whatever bookings they could pick up in the gaps left by the larger concerns.