Cash and cash equivalents
$48,053,395
$41,820,067
Receivables from grants and governmental contracts, and other
$85,049,109
$108,226,123
Investments, at fair value
$10,320,823
$9,577,071
Deferred charges and other assets
$1,414,049
$1,938,189
Property and equipment, at cost, net
$8,250,370
$11,524,671