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Organization and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2015
Organization and Summary of Significant Accounting Policies - Organization and Investments |
Schedule of reconciliation between basic common shares and fully diluted common shares |
|  | Years Ended December 31, |
|  | 2015 |  | 2014 |  | 2013 |
|  | (in thousands) |
Shares: |  |  |  |  |  |  |
Weighted-average number of common shares outstanding |  | 7,811 |  | 7,917 |  | 8,029 |
Dilutive and potentially dilutive common shares |  | 171 |  | 224 |  | 260 |
Total shares |  | 7,982 |  | 8,141 |  | 8,289 |
Schedule of fair value hierarchy of assets measured on nonrecurring basis and gain (losses) recorded |
|  | Assets at Fair Value |  | Total Losses |
|  | December 31, 2015 |  | December 31, 2014 |  | December 31, |
|  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | 2015 |  | 2014 |
|  | (in thousands) |  | (in thousands) |
Equipment held for lease |  | $ | 2,154 |  | $ | — |  | $ | 2,154 |  | $ | — |  | $ | 10,787 |  | $ | — |  | $ | 10,787 |  | $ | — |  | $ | (2,536) |  | $ | (2,420) |
Equipment held for sale |  |  | 4,932 |  |  | — |  |  | 4,932 |  |  | — |  |  | 3,364 |  |  | — |  |  | 3,364 |  |  | — |  |  | (6,645) |  |  | (3,074) |
Spare parts inventory |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,371 |  |  | — |  |  | 2,371 |  |  | — |  |  | — |  |  | (108) |
Total |  | $ | 7,086 |  | $ | — |  | $ | 7,086 |  | $ | — |  | $ | 16,522 |  | $ | — |  | $ | 16,522 |  | $ | — |  | $ | (9,181) |  | $ | (5,602) |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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