Debt instrument, asset coverage ratio.

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- Definition

Debt instrument conversion multiples principal amount.

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- Definition

Debt instrument prepayment premium percentage.

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Debt instrument, senior coverage ratio.

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- Definition

Line of credit facility maximum borrowing capacity subject to certain conditions.

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Long-term debt, maximum amounts borrowed.

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No definition available.

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- Definition

Minimum shareholders' equity requirement percentage of total assets.

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Net proceeds from sale of equity interests percentage.

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Number of tranches.

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No definition available.

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Percentage of asset coverage.

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Percentage of asset coverage requirement.

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- Definition

Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

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Date the debt agreement requires the first payment to be made, in YYYY-MM-DD format.

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Face (par) amount of debt instrument at time of issuance.

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Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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Incremental percentage increase (decrease) in the stated rate on a debt instrument.

+ References

No definition available.

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Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Amount of the required periodic payments including both interest and principal payments.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Fixed interest rate related to the interest rate derivative.

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No definition available.

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Date the derivative contract matures, in YYYY-MM-DD format.

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No definition available.

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Nominal or face amount used to calculate payment on derivative.

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Date the credit facility terminates, in YYYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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Average amount outstanding of long-term debt.

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Weighted average interest rate of long-term debt outstanding calculated over time.

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No definition available.

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The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

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The cash inflow from borrowings supported by a written promise to pay an obligation that is uncollateralized (where debt is not backed by the pledge of collateral).

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The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Number of shares issued during the period as a result of the conversion of convertible securities.

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The gross value of stock issued during the period upon the conversion of convertible securities.

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-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
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Debt - Additional Information (Details)						12 Months Ended
Debt - Additional Information (Details)	Jun. 09, 2022 USD ($) Tranche	Apr. 23, 2021 USD ($)	Apr. 22, 2021 USD ($)	May 21, 2020	Jun. 13, 2017 USD ($) $ / shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 01, 2022 USD ($)	May 02, 2020	May 01, 2020
Debt Instrument [Line Items]
Percentage of asset coverage requirement										150.00%	200.00%
Percentage of asset Coverage						225.00%	276.00%
Weighted average outstanding debt balance						$ 232,532,610	$ 181,797,885	$ 310,955,762
Maximum amounts borrowed						$ 377,532,262	$ 219,078,123	$ 356,304,028
Weighted average annual interest cost						5.36%	5.82%	4.80%
Line of credit facility unused portion of commitment fee percentage				0.375%		0.40%
Decrease in accumulated loss						$ (458,387,778)	$ (434,303,297)
Interest Rate Swap
Debt Instrument [Line Items]
Notional amount						$ 35,000,000
Maturity date						Jun. 09, 2025
Fixed interest rate						2.633%
Periodic payment						$ 0
Fair value						(1,332,299)
ASU 2020-06
Debt Instrument [Line Items]
Decrease in accumulated loss									$ 3,888,233
Decrease in additional paid in capital									4,337,631
Increase in carrying value of Convertible Notes									$ 449,398
Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 265,000,000	$ 300,000,000			265,000,000	265,000,000
Credit facility, increase in borrowing capacity subject to satisfaction of certain conditions		$ 325,000,000	$ 375,000,000			$ 325,000,000.0	325,000,000.0
Credit facility maturity date		Apr. 23, 2025	Jun. 05, 2023
Minimum shareholders' equity requirement percentage of total assets		33.00%
Net proceeds from sale of equity interests		$ 240,000,000
Net proceeds from sale of equity interests percentage		25.00%
Debt instrument, covenant description						Under the Credit Facility, the Company is required to comply with various customary affirmative and restrictive covenants, including reporting requirements and financial covenants, including, without limitation, covenants related to: (a) limitations on the incurrence of additional indebtedness and liens, (b) limitations on certain investments and fundamental changes, (c) limitations on dividends and certain other restricted payments, (d) certain restrictions on subsidiaries, (e) maintaining a certain minimum shareholders’ equity, (f) maintaining an asset coverage ratio of not less than 1.5:1.0, (g) maintaining a senior coverage ratio of not less than 2.0:1:0, (h) limitations on certain transactions with affiliates, (i) limitations on pledging certain unencumbered assets, and (j) limitations on the creation or existence of agreements that prohibit liens on certain properties of the Company and certain of its subsidiaries. These covenants are subject to important limitations and exceptions that are described in the Credit Facility and other loan documents. Further, amounts available to borrow under the Credit Facility (and the incurrence of certain other permitted debt) are also subject to compliance with a borrowing base that applies different advance rates to different types of assets in the Company’s portfolio that are pledged as collateral. The Credit Facility is secured by a lien on substantially all of the assets of the Company and its wholly owned domestic subsidiaries, subject to certain customary exceptions.
Senior Secured Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Debt instrument, asset coverage ratio		1.5
Debt instrument, senior coverage ratio		2.0
5.00% Convertible Notes Due 2022
Debt Instrument [Line Items]
Debt instrument, maturity date					Jun. 15, 2022
Aggregate principal amount					$ 143,750,000
Debt instrument, interest rate					5.00%
Net proceeds from offering including exercise of overallotment option					$ 139,800,000
Repayment of aggregate outstanding principal amount plus outstanding accrued interest					$ 143,720,000
Debt instrument interest repayment commencement date					Dec. 15, 2017
Debt instrument interest payment terms						The interest rate on the notes was 5.00% per year, payable semiannually in arrears on June 15 and December 15 of each year, commencing on December 15, 2017.
Debt instrument conversion multiples principal amount					$ 1,000
Debt instrument conversion rate					118.2173
Debt instrument conversion price per share \| $ / shares					$ 8.46
5.00% Convertible Notes Due 2022 \| Common Stock
Debt Instrument [Line Items]
Shares issued to noteholder \| shares						3,546
Aggregate value issued to a noteholder						$ 30,000
5.00% Convertible Notes Due 2022 \| IPO
Debt Instrument [Line Items]
Aggregate principal amount					$ 125,000,000
5.00% Convertible Notes Due 2022 \| Overallotment Option
Debt Instrument [Line Items]
Aggregate principal amount					$ 18,750,000
Unsecured Senior Notes Due 2025
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 09, 2025
Debt instrument, covenant description						The Note Purchase Agreement contains customary terms and conditions for senior unsecured notes issued in a private placement, including, without limitation, affirmative and negative covenants such as information reporting, maintenance of the Company’s status as a business development company within the meaning of the Investment Company Act of 1940, as amended, and a regulated investment company under the Internal Revenue Code of 1986, as amended, minimum shareholders’ equity, minimum asset coverage ratio, and prohibitions on certain fundamental changes of the Company. The Note Purchase Agreement also contains customary events of default with customary cure and notice periods, including, without limitation, nonpayment, incorrect representation in any material respect, breach of covenant, cross-default under other indebtedness of the Company or certain significant subsidiaries, certain judgments and orders, and certain events of bankruptcy.
Debt instrument interest payment terms						The Company issued $35,000,000 in aggregate principal amount of 2025 Private Placement Notes with a fixed interest rate of 5.82% with interest to be paid semi-annually on June 9 and December 9 of each year, beginning on December 9, 2022, and $57,000,000 in aggregate principal amount of 2025 Private Placement Notes bearing interest at a rate equal to SOFR plus 3.14% with interest to be paid quarterly on March 9, June 9, September 9, and December 9 of each year, beginning on September 9, 2022.
Number of tranches \| Tranche	2
Percentage of increase in interest rate	1.00%
Unsecured Senior Notes Due 2025 \| Prepayment on or Before June 9, 2023
Debt Instrument [Line Items]
Debt instrument prepayment premium percentage	2.00%
Unsecured Senior Notes Due 2025 \| Prepayment After June 9, 2023 but on or Before June 9, 2024
Debt Instrument [Line Items]
Debt instrument prepayment premium percentage	1.00%
Unsecured Senior Notes Due 2025 \| Prepayment After June 9, 2024 but on or Before June 9, 2025
Debt Instrument [Line Items]
Debt instrument prepayment premium percentage	0.50%
Unsecured Senior Notes Due 2025 \| Prepayment After June 9, 2025
Debt Instrument [Line Items]
Debt instrument prepayment premium percentage	0.00%
Unsecured Senior Notes Due 2025 \| Tranche One
Debt Instrument [Line Items]
Debt instrument interest repayment commencement date	Dec. 09, 2022
Frequency of periodic payments						semi-annually
Unsecured Senior Notes Due 2025 \| Tranche Two
Debt Instrument [Line Items]
Aggregate principal amount	$ 92,000,000
Debt instrument interest repayment commencement date	Sep. 09, 2022
Debt instrument interest payment terms						quarterly
Unsecured Convertible Senior Notes Due2022 [Member]
Debt Instrument [Line Items]
Debt instrument, covenant description						The 2022 Convertible Notes contained certain covenants, which included covenants that required the Company to reserve shares of common stock for the purpose of satisfying all obligations to issue the underlying securities upon conversion of the securities and to furnish to holders of the securities upon request, any information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act.
Aggregate principal amount							$ 143,750,000
Debt instrument, interest rate							5.00%
2025 Private Placement Notes
Debt Instrument [Line Items]
Aggregate principal amount						$ 92,000,000
2025 Private Placement Notes \| SOFR
Debt Instrument [Line Items]
Aggregate principal amount						$ 57,000,000.0
Debt instrument, basis spread on variable rate						3.14%
2025 Private Placement Notes \| Fixed Interest Rate
Debt Instrument [Line Items]
Aggregate principal amount						$ 35,000,000.0
Debt instrument, interest rate						5.82%
2025 Private Placement Notes \| Tranche One \| Fixed Interest Rate
Debt Instrument [Line Items]
Aggregate principal amount	$ 35,000,000
Debt instrument, interest rate	5.82%
2025 Private Placement Notes \| Tranche Two \| SOFR
Debt Instrument [Line Items]
Aggregate principal amount	$ 57,000,000
Debt instrument, basis spread on variable rate	3.14%