a low ebb
A state of decline. The economy is at a low ebb with no hope of recovery in the near future.
(at) a low ˈebbnot as good, strong, successful, etc. as usual: Business confidence is at a low ebb at the moment. ♢ Our family fortunes are at a bit of a low ebb. OPPOSITE: (on) the crest of a wave
This idiom refers to a very low tide, when the sea is a long way from the land.