Consolidated Condensed Schedule of Investments (Cash Equivalents) shares in Thousands, $ in Thousands |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
shares
|
[2] | |||||
| Cash equivalents | ||||||
| Schedule of Investments [Line Items] | ||||||
| Investment owned as a percentage of equity | 2.09% | [1] | ||||
| Money Market Funds, at Cost | $ 12,460 | |||||
| Money Market Funds, at Carrying Value | $ 12,460 | |||||
| Cash equivalents | Various Money Market Funds [Member] | ||||||
| Schedule of Investments [Line Items] | ||||||
| Investment Owned, Balance, Shares | shares | 12,460 | |||||
| Money Market Funds, at Carrying Value | $ 12,460 | |||||
| Cash equivalents | Various Money Market Funds [Member] | Minimum | ||||||
| Schedule of Investments [Line Items] | ||||||
| Rate | 2.31% | |||||
| Cash equivalents | Various Money Market Funds [Member] | Maximum | ||||||
| Schedule of Investments [Line Items] | ||||||
| Rate | 2.34% | |||||
| ||||||