| Outstanding Principal | $5.7M | — | — | $401.5M | $14.9M | — | — | $413.6M |
| Financing Receivable Revolving Converted To Term Loan During Period | $9.6M | $27.7M | — | $72M | — | $18.8M | — | $67.1M |
| Proceeds from revolver | $16M | $29.5M | $85.5M | $16M | $40.9M | $49.2M | $36M | $55.8M |
| Principal Repayment Of Loans And Principal Receivables | $18M | $300K | — | $9.2M | $3.1M | $57.2M | — | $51.6M |
| Repayments and sales of loans | $18M | $42.6M | — | $9.2M | $3.1M | $57.2M | — | $51.6M |
| Issuance Of And Fundings Of Loans Held For Investment | $20.8M | $32M | — | $3.7M | $6.7M | $48.7M | — | $49.8M |
| New Fundings | $20.8M | $32M | — | $4.2M | $15.6M | $39.2M | — | $49.8M |
| Repayments of Lines of Credit | $20.5M | $52.3M | $84.5M | $33M | $7.7M | $68M | $39.3M | $37.8M |
| Proceeds From Repayments Of Debt | — | — | — | $17M | — | — | — | $18M |
| Interest Income Operating | $15M | $16.3M | $15.5M | $15.1M | $16.5M | $15.3M | $16.1M | $15.2M |
| Interest Income (Expense), Operating | $13.2M | $14.5M | $14.1M | $13M | $14.4M | $13.7M | $14.2M | $13.1M |
| Net Change in Cash and Restricted Cash | — | -$310.5K | — | -$16.5M | $25.7M | — | — | $12.9M |
| Capital investments accrued but not yet paid | $249.5K | $11K | $4.3M | $9.8M | $85K | $316 | $1.3M | $10.1M |
| Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings | $9.2M | $9.2M | — | $9.7M | $9.9M | $9.9M | — | $9.9M |
| Payments of Dividends | $9.2M | $9.3M | $9.3M | $13.6M | $10.4M | $9.9M | $9.9M | $9.9M |
| Cash Dividends Paid | $9.2M | $9.3M | — | $13.6M | $10.4M | $9.9M | — | $9.9M |
| Noninterest Expense | $4M | $3.2M | $6M | $3M | $5.7M | $4.8M | $6.1M | $8.1M |
| Cash Provided by (Used in) Financing Activity, Including Discontinued Operation | $0 | -$32.1M | $59.1M | -$29.7M | — | -$28.9M | -$13.2M | $8M |
| Net income from discontinued operations attributable to basic common shareholders | $9.2M | $11.2M | — | $10M | $8.9M | $8.9M | — | $4.8M |
| Future Fundings | — | — | — | $13.8M | $2.8M | $13.2M | — | $4.5M |
| Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Vested | $1.7M | $140.9K | $247.3K | $3M | $2.5M | — | — | $4.4M |
| Original Issue Premium Discount | — | -$194.8K | — | -$2.1M | -$386.3K | — | — | -$4.4M |
| Total provisions for credit losses | -$275.5K | -$989.6K | — | -$1.1M | $1.1M | $557.2K | $99.8K | $3.8M |
| Provision (benefit) for other credit losses | $491.3K | -$775.7K | — | -$1.1M | $1.1M | $569.6K | — | $3.6M |
| Payments for Advance to Affiliate | $1.2M | $1.2M | $1.2M | $5.3M | — | — | — | $3.2M |
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | $6.2M | $8.2M | $1.8M | $7.6M | $6.5M | $8.2M | $6.5M | $3.2M |
| Interest Paid, Net | $1.9M | $1.7M | $866.7K | $1.7M | $3M | $1.7M | $486K | $3M |
| Interest Paid, Excluding Capitalized Interest, Operating Activity | $1.9M | $1.7M | $866.7K | $1.7M | $3M | $1.7M | $486K | $3M |
| Unamortized Share Based Compensation Expense | $2.1M | — | — | $3.7M | — | — | — | $2.8M |
| Cost of sales—affiliate | $2.9M | $2.8M | — | $2.9M | $3.1M | $2.6M | — | $2.7M |
| Debt | $1.7M | $1.7M | — | $1.9M | $1.9M | $1.4M | — | $1.9M |
| Increase (Decrease) in Other Receivables | -$104.8K | $65.7K | -$243.3K | $116.9K | — | $90.9K | $317.1K | $1.9M |
| Cash Provided by (Used in) Investing Activity, Including Discontinued Operation | -$2.9M | $23.5M | -$41.3M | $5.5M | — | $14.1M | — | $1.7M |
| Management and incentive fees | — | $1.7M | $2.9M | $1.7M | $1.9M | $1.4M | $3.1M | $1.7M |
| Management And Incentive Fees Payable To The Manager | $715.8K | $715.8K | $715.8K | $3.1M | — | — | — | $1.7M |
| General And Administrative Expenses Reimbursable To Manager | $510.9K | $510.9K | $510.9K | $2.2M | — | — | — | $1.5M |
| Increase (Decrease) in Other Accounts Payable and Accrued Liabilities | -$44.5K | -$105.8K | — | -$1.1M | — | -$497.9K | — | -$1.4M |
| Interest Income Operating Paid In Kind | $2.8M | $1.9M | — | $1.6M | $1.5M | $1.3M | — | $1.3M |
| Management fees | $1.1M | $1.1M | — | $1.2M | $1.1M | $1.2M | — | $1.2M |
| Management Fees Earned | $1.1M | $1.1M | — | $1.2M | $1.2M | $1.2M | — | $1.2M |
| Management Fees Payable To The Manager | $231.4K | $231.4K | $231.4K | $1M | $56.9K | — | — | $1.2M |
| Increase Decrease In Accounts Receivable Related Parties | $646.5K | $632.7K | — | -$2.1M | -$349.4K | -$852.8K | — | -$1.1M |
| Increase Decrease In Interest Payable Net | $149.4K | $149.4K | $149.4K | $214.5K | — | — | — | -$1M |
| Other General and Administrative Expense | $1.1M | $1.1M | — | $1.1M | $1.2M | $1.2M | — | $1M |
| Pre-tax stock-based compensation cost | $868.7K | $800K | — | $600K | $900K | $1M | — | $900K |
| Increase Decrease In Accrued Interest Receivable Net | $242.8K | -$685.3K | $969.5K | $62.1K | $1.8M | $1.2M | — | $897.5K |
| Share-based compensation expense related to employee stock plans | $836.3K | $845.5K | — | $649.3K | $881.1K | $928.7K | — | $865.4K |
| Stock-based compensation | $836.3K | $845.5K | $845.5K | $649.3K | $881.1K | $928.7K | $909.8K | $865.4K |
| Increase Decrease In Due To Related Parties Current | — | -$379.9K | — | -$456.9K | — | $1.2M | — | -$761K |
| Incentive Fees Payable To The Manager | $484.4K | $484.4K | $484.4K | $2.1M | — | — | — | $518.5K |
| Change In Unrealized Gain Loss On Debt Securities At Fair Value | $0 | $0 | -$165K | $0 | $165K | $0 | $0 | -$206K |
| Dividend, Share-Based Payment Arrangement | $265.8K | $41K | — | $151.8K | $605.1K | $2.8K | — | $189.8K |
| Change in Accounts Payable and Accrued Liabilities | $198.7K | — | — | $40.8K | -$969.8K | -$283.4K | — | $187.1K |
| Accounts payable and other current liabilities | $198.7K | — | $284.3K | $40.8K | -$969.8K | -$283.4K | — | $187.1K |
| Debt Instrument Covenants Maximum Capital Expenditures | — | — | — | $150K | — | — | — | $150K |
| Amortization Of Deferred Financing Costs | $91.7K | $79.8K | — | $110.3K | $110.1K | $101.7K | — | $83.5K |
| Amortization Of Financing Costs And Discounts | $91.7K | $79.8K | $0 | $110.3K | $110.1K | $101.7K | $84.5K | $83.5K |
| Payments Of Stock Issuance Costs | $327K | $89.6K | $463.9K | $82.1K | $0 | $68.7K | $10K | $29.7K |
| Unused Fee Expense | $13.8K | $18.1K | — | $42.7K | $42.8K | $41.6K | — | $26.1K |
| Reserve Disbursed | $810.7K | $1.3M | $1.3M | $771.1K | $305.9K | $228.8K | $156.2K | $3.8K |
| New Reserves | $782.6K | $1.3M | $30.6K | $20.7K | $1.8K | $0 | $154.3K | $1.1K |
| Number of Operating Segments | — | — | — | 1.00 | — | — | — | 1.00 |
| Required Percentage Of Distribution To Stockholders Form REIT Taxable Income | — | — | — | — | — | — | — | 90.0% |
| Prorata Percentage Reduction On Base Management Fee | — | — | — | — | — | — | — | 50.0% |
| Common Stock Dividends Per Share Declared | $0.5 | $0.5 | — | $0.5 | $0.5 | $0.5 | — | $0.5 |
| Common Stock Dividends Per Share | $0.5 | $0.5 | — | $0.5 | $0.5 | $0.5 | — | $0.5 |
| Dividends per share declared | $0.5 | $0.5 | — | $0.5 | $0.5 | $0.5 | — | $0.5 |
| Dividends per share declared | $0.5 | $0.5 | — | $0.5 | $0.5 | $0.5 | — | $0.5 |
| Common Stock Dividends Per Share Declared | $0.5 | $0.5 | — | $0.5 | $0.5 | $0.5 | — | $0.5 |
| Common Stock Dividends Per Share Declared | $0.5 | $0.5 | — | $0.5 | $0.5 | $0.5 | — | $0.5 |
| Common Stock Dividends Per Share Declared | $0.5 | $0.5 | — | $0.5 | $0.5 | $0.5 | — | $0.5 |
| Yieldto Maturityof Internal Rateof Return | — | — | — | 16.9% | — | — | — | 15.8% |
| Line of Credit Facility, Interest Rate During Period | — | — | — | 7.5% | — | — | — | 6.8% |
| Percentage Of Loan Risk Portfolio | — | — | 1.1% | — | — | — | 1.2% | 2.1% |
| Management And Service Fees Base Rate | — | — | — | — | — | — | — | 0.4% |
| Stock options excluded as their inclusion would be anti-dilutive (in shares) | $0 | $0 | — | $0 | $0 | $0 | — | $0 |
| Assigned Right Sold Amount | $0 | $0 | — | $0 | $0 | $0 | — | $0 |
| Increase Decrease In Payable For Investment Purchased | — | — | — | $500K | $9M | — | — | — |
| Maximum Gross Proceeds Percentage | — | — | — | 2.0% | — | — | — | — |
| Outside Fees Earned | $15.5K | $60K | — | $3.6K | $133K | $82.5K | — | $0 |
| Proceeds from Issuance of Common Stock | $10.9M | $43.5K | $18.8M | $1M | — | — | — | $0 |
| Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period | — | — | — | 4.8K | — | — | — | — |
| Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value | — | — | — | $15.59 | — | — | — | — |
| Stock Issued During Period Shares Restricted Stock Award Forfeited | — | — | — | 4.8K | — | — | — | 0 |
| Issuance of common stock in connection with the Spin-Off and reclassification of net parent investment | $6.2M | -$46.1K | — | $951.4K | $1 | -$68.7K | — | — |
| Weighted Average Sales Price Per Share | — | — | — | $16.01 | — | — | — | — |
