Small cardamom prices, after showing an easier trend last week, gained marginally at Tuesday's auction held in Kerala. Last week, activities were limited because of financial year closing. Arrivals were also thin, PC Punnoose, General Manager, CPMC, told BusinessLine . He said exporters were active and they bought an estimated 50 tonnes. But, upcountry buyers were not active last week. Arrivals stood at 220 tonnes last week as against 318 tonnes the previous week.