Short-Term Investments  | 
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2019  | |||||||||||
| Investments, Debt and Equity Securities [Abstract] | |||||||||||
| Short-Term Investments | 
 NOTE 2 – SHORT-TERM INVESTMENTS 
 The following table summarizes the available-for-sale investments held as of December 31, 2018. There were no available-for-sale investments as of December 31, 2019. 
 
 
 The amortized cost of the available-for-sale investments is adjusted for amortization of premiums and accretion of discounts to maturity. There were no material realized gains or losses recognized on the sale or maturity of available-for-sale investments during the years ended December 31, 2019 or 2018.  | 
||||||||||
| X | ||||||||||
- References No definition available. 
  | 
| X | ||||||||||
- Definition The entire disclosure for investments in certain debt and equity securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
  |