The metal-insulator crossover of the perovskite-type system near x = 0 has been explored through measurements of the x-ray diffraction, electrical resistivity, thermoelectric power, Hall effect, and magnetization. This system ranges from being a highly correlated metal phase for x > 0.05 to being an antiferromagnetic metal-like phase for and then to being a variable-range hopping-like insulator phase for the composition with a bandwidth comparable to the electron correlation. The phase for may be characterized in terms of local electron correlations as well as antiferromagnetic spin fluctuations.