I don't know anything about charts, but PRIA sure has a nice record of revenue and eps growth. See the table below. They have 16 consecutive  quarters of sequential revenue growth, and 8 consecutive for eps. 
  As far as valuation is concerned, I would say it is nicely valued at 48. Keep in mind that they are expected to earn $2.37 in the  FY ending in September, putting the p/e at 19.2 Compare that to the  30% - 38% 5-yr growth rates predicted by the two analysts who reported  their guesses to  Zacks. Also keep in mind that they dominate their  market niche, and customers typically come back to add on to their  systems.
                           HISTORICAL QUARTERLY RESULTS                                    REVENUE                          (Thousands of U.S. Dollars)                        1993        1994        1995        1996     1st Qtr    DEC     2,986       7,683      12,464      22,037     2nd Qtr    MAR     4,015       8,805      14,451      26,200     3rd Qtr    JUN     5,758       9,138      16,518      28,440     4th Qtr    SEP     6,456      10,667      20,609      34,007
                                EARNINGS PER SHARE                            (U.S. Dollars per share)     1st Qtr    DEC    0.020       0.070       0.230       0.420     2nd Qtr    MAR    0.050       0.190       0.270       0.440     3rd Qtr    JUN   -0.890       0.200       0.310       0.460     4th Qtr    SEP    0.180       0.250       0.360       0.490 |