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UNAUDITED INTERIM CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
Preferred stock
Series B Preferred Stock
Preferred stock
Preferred stock Series C
Common stock
Additional paid-in capital
Retained Earnings / (Accumulated Deficit)
Preferred stock Series C
Retained Earnings / (Accumulated Deficit)
Preferred stock Series C
Total
Balance at the end at Jun. 30, 2021     $ 5,000     $ (1,000)   $ 4,000
Balance at the end (in shares) at Jun. 30, 2021     500          
Balance at the beginning at Apr. 14, 2021 $ 0 $ 0 $ 5,000 $ 0   0   0
Balance at the beginning (in shares) at Apr. 14, 2021 0 0 500          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income / (loss)           (1,000)   (1,000)
Balance at the end at Jun. 30, 2021     $ 5,000     (1,000)   4,000
Balance at the end (in shares) at Jun. 30, 2021     500          
Balance at the beginning at Apr. 14, 2021 $ 0 $ 0 $ 5,000 0   0   0
Balance at the beginning (in shares) at Apr. 14, 2021 0 0 500          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income / (loss)           134,000   134,000
Cancellation of common stock     $ (5,000)          
Cancellation of common stock (in shares)     (500)          
Dividends declared on series C preferred stock (Note 6(c))         $ (69,000)   $ (69,000)  
Balance at the end at Dec. 31, 2021 $ 5,000   $ 88,000 47,991,000   65,000   48,149,000
Balance at the end (in shares) at Dec. 31, 2021 500,000 10,000 8,820,240          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income / (loss)           1,062,000   1,062,000
Issuance of 15,571,429 units (comprising from common stock or prefunded warrants and warrants) and 628,751 warrants at primary offering, net of issuance costs (Note 6(a) and 6(b))     $ 131,000 10,521,000       10,652,000
Issuance of 15,571,429 units (comprising from common stock or prefunded warrants and warrants) and 628,751 warrants at primary offering, net of issuance costs (Note 6(a) and 6(b)) (in shares)     13,071,429          
Issuance of common stock following exercise of 4,156,000 Class A warrants and 2,500,000 prefunded warrants (Note 6(a) and 6(b))     $ 66,000 3,066,000       3,132,000
Issuance of common stock following exercise of 4,156,000 Class A warrants and 2,500,000 prefunded warrants (Note 6(a) and 6(b)) (in shares)     6,656,000          
Issuance of 1,281,423 shares of common stock and 2,430,000 Class A warrants upon exercise of underwriters' over-allotment option (Note 6(a) and 6(b))     $ 13,000 881,000       894,000
Issuance of 1,281,423 shares of common stock and 2,430,000 Class A warrants upon exercise of underwriters' over-allotment option (Note 6(a) and 6(b)) (in shares)     1,281,423          
Compensation on restricted stock awards (Note 6(d))       158,000       158,000
Dividends declared and paid ($0.05 per share of common stock and Class A warrant) (Note 6(e))       (1,767,000)   (448,000)   (2,215,000)
Dividends declared and paid ($0.01 per share of common stock and Class A warrant) (Note 6(e))           (443,000)   (443,000)
Dividends declared on series C preferred stock (Note 6(c))       (235,000)   $ (236,000)   (471,000)
Balance at the end at Jun. 30, 2022 $ 5,000   $ 298,000 $ 60,615,000       $ 60,918,000
Balance at the end (in shares) at Jun. 30, 2022 500,000 10,000 29,829,092