Note 9 - Concentration of Risk

Cash and cash equivalents. We maintain deposits in banks in amounts that might exceed the federal deposit insurance available. Management believes the potential risk of loss on these cash and cash equivalents to be minimal. Cash balances as of September 30, 2018 and December 31, 2017, including foreign subsidiaries, without FDIC coverage were $2.6 million and $5.3 million, respectively.

Revenue. A significant portion of our revenue is derived from the Rich Dad brands. Revenue derived from the Rich Dad brands as a percentage of total revenue was 72.3% and 71.8% for the three months ended September 30, 2018 and 2017, and 71.4% and 71.7% for the nine months ended September 30, 2018 and 2017, respectively. In addition, we have operations in the North America, the United Kingdom and other foreign markets (see Note 10 — Segment Information).