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Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 03, 2023 | Apr. 17, 2023 | Jun. 12, 2018 | Jun. 08, 2018 | Feb. 28, 2023 | Nov. 30, 2022 | May 31, 2022 | Mar. 31, 2023 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2022 | Feb. 28, 2022 | Feb. 07, 2022 | Mar. 08, 2021 | Mar. 11, 2013
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends on preferred stock |  |  |  |  |  |  |  | $ 157 |  | $ 370 |  |  |  |  |
Unrecognized compensation cost |  |  |  |  |  |  |  | $ 2,900 |  |  |  |  |  |  |
Weighted-average period |  |  |  |  |  |  |  | 1 year 2 months 12 days |  |  |  |  |  |  |
Deferred stock units granted |  |  |  |  |  |  |  |  |  |  |  | 290,000 |  |  |
Dividends on common stock |  |  |  |  |  |  |  | $ 0.075 |  | $ 0.075 |  |  |  |  |
Cash dividend paid |  |  |  |  |  |  |  | $ 0.075 |  | $ 0.075 |  |  |  |  |
Redemption of preferred stock |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |
Board of Directors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, liquidation preference per share |  |  |  |  |  |  |  |  |  |  |  |  | $ 8.5 |  |
Preferred Stock, Liquidation Preference, Value |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |
Employee [Member] | Lumo Finland Grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  |  |  |  | 5.10% |  |  |  |  |  |  |  |  |
Employee [Member] | Lumo Sweden [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  |  |  |  | 2.30% |  |  |  |  |  |  |  |  |
Dividend Paid [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock dividend rate |  |  |  |  |  |  |  |  |  |  | $ 0.5301 |  |  |  |
Dividends on preferred stock |  |  |  |  |  |  |  |  |  |  | $ 500 |  |  |  |
Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, dividends per share |  |  |  |  |  |  |  | $ 0.1594 |  |  |  |  |  |  |
Redemption of preferred stock, shares |  |  |  |  |  |  |  | (117,000) |  |  |  |  |  |  |
Redemption of preferred stock |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |
Preferred Stock [Member] | Stock Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption of preferred stock, shares |  |  |  |  |  |  |  | 117,647 |  |  |  |  |  |  |
Redemption of preferred stock |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |
Preferred Stock [Member] | GRE [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, dividends per share |  |  |  |  |  |  |  |  |  |  | $ 0.5301 |  |  |  |
Preferred Stock [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Price per share |  | $ 8.5 |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, dividends per share |  | $ 0.6895 |  |  |  |  |  |  |  |  |  |  |  |  |
Paid date of declared dividend |  | May 15, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |
Record date of declared dividend |  | May 05, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption of preferred stock, shares |  | 117,647 |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption of preferred stock |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption Date |  | May 15, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock [Member] | Subsequent Event [Member] | Board of Directors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock dividend redeemable | $ 2,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption Date | Jun. 13, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares issued |  |  |  |  |  |  | 72,657 |  |  |  |  |  |  |  |
Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares |  |  |  |  |  |  | 136,987 |  |  |  |  |  |  |  |
Class B common stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares repurchased, shares |  |  |  |  |  |  |  | 0 |  | 0 |  |  |  |  |
Number of stock authorized to be repurchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,000,000
Remaining number of shares available for repurchase |  |  |  |  |  |  |  | 4,700,000 |  |  |  |  |  |  |
Warrants to purchase shares |  |  |  |  |  |  |  | 1,048,218 |  |  |  |  |  |  |
Warrants exercise price per share |  |  |  |  |  |  |  | $ 4.77 |  |  |  |  |  |  |
Treasury Stock, Common, Shares |  |  |  |  |  |  |  | 2,700,000 |  |  | 2,700,000 |  |  |  |
Treasury stock cost |  |  |  |  |  |  |  | $ 19,175,000 |  |  | $ 19,000 |  |  |  |
Weighted average cost per share |  |  |  |  |  |  |  | $ 7.05 |  |  | $ 7.03 |  |  |  |
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings |  |  |  |  | 290,000 | 123,302 |  |  | 290,000 |  |  |  |  |  |
Description of vested period |  |  |  |  |  | May 2023 and up to May 2025 |  |  |  |  |  |  |  |  |
Class B common stock [Member] | 2021 Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of shares reserved for the grant of awards |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |
Class B common stock [Member] | Howard S. Jonas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants to purchase shares |  |  |  | 1,048,218 |  |  |  |  |  |  |  |  |  |  |
Warrants exercise price per share |  |  |  | $ 4.77 |  |  |  |  |  |  |  |  |  |  |
Amount of warrants aggregate exercise price |  |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |  |
Class B common stock [Member] | Investor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of aggregate sales price |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |
Warrants to purchase shares |  |  | 209,644 |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercise price per share |  |  | $ 4.77 |  |  |  |  |  |  |  |  |  |  |  |
Amount of warrants aggregate exercise price |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |
Class B common stock [Member] | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders grant of options purchase |  |  |  |  |  |  |  | 33,000 |  | 9,000 |  |  |  |  |
Class B common stock [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock warrants exercised |  |  |  |  |  |  | 209,644 |  |  |  |  |  |  |  |
Class A Common Stock and Class B Common Stock [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Paid date of declared dividend | May 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Record date of declared dividend | May 20, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends on common stock | $ 0.075 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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