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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-In Capital [Member] | Treasury stock [Member] | Accumulated Deficit [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2020 | $ 29,943 | $ 6 | $ 353 | $ 293,400 |  | $ (263,816)
Begining Balance (in shares) at Dec. 31, 2020 |  | 568 | 35,281,183 |  |  |
Issuance of common stock from stock option awards | (120) |  | $ 4 | (124) |  |
Issuance of common stock from stock options awards, shares |  |  | 366,294 |  |  |
Stock-based compensation expense | 67 |  |  | 67 |  |
Net income | 1,032 |  |  |  |  | 1,032
Ending Balance at Mar. 31, 2021 | 30,922 | $ 6 | $ 357 | 293,343 |  | (262,784)
Ending Balance (in shares) at Mar. 31, 2021 |  | 568 | 35,647,477 |  |  |
Beginning Balance at Dec. 31, 2020 | 29,943 | $ 6 | $ 353 | 293,400 |  | (263,816)
Begining Balance (in shares) at Dec. 31, 2020 |  | 568 | 35,281,183 |  |  |
Net income | 2,093 |  |  |  |  |
Ending Balance at Sep. 30, 2021 | 31,584 | $ 6 | $ 366 | 292,935 |  | (261,723)
Ending Balance (in shares) at Sep. 30, 2021 |  | 565 | 36,574,702 |  |  |
Beginning Balance at Mar. 31, 2021 | 30,922 | $ 6 | $ 357 | 293,343 |  | (262,784)
Begining Balance (in shares) at Mar. 31, 2021 |  | 568 | 35,647,477 |  |  |
Issuance of common stock from stock option awards | (670) |  | $ 6 | (676) |  |
Issuance of common stock from stock options awards, shares |  |  | 611,905 |  |  |
Issuance of restricted common stock | 76 |  |  | 76 |  |
Issuance of restricted common stock, shares |  |  | 25,000 |  |  |
Stock-based compensation expense | 68 |  |  | 68 |  |
Net income | 587 |  |  |  |  | 587
Ending Balance at Jun. 30, 2021 | 30,983 | $ 6 | $ 363 | 292,811 |  | (262,197)
Ending Balance (in shares) at Jun. 30, 2021 |  | 568 | 36,284,382 |  |  |
Issuance of common stock from stock option awards | 25 |  | $ 3 | 22 |  |
Issuance of common stock from stock options awards, shares |  |  | 290,200 |  |  |
Issuance of common stock due to conversion of Series N Preferred stock |  | 3 | (120) |  |  |
Stock-based compensation expense | 102 |  |  | 102 |  |
Net income | 474 |  |  |  |  | 474
Ending Balance at Sep. 30, 2021 | 31,584 | $ 6 | $ 366 | 292,935 |  | (261,723)
Ending Balance (in shares) at Sep. 30, 2021 |  | 565 | 36,574,702 |  |  |
Beginning Balance at Dec. 31, 2021 | 32,639 | $ 6 | $ 366 | 293,030 |  | (260,763)
Begining Balance (in shares) at Dec. 31, 2021 |  | 565 | 36,574,702 |  | 0 |
Issuance of common stock from stock option awards | (23) |  | $ 1 | (24) |  |
Issuance of common stock from stock options awards, shares |  |  | 103,135 |  |  |
Stock-based compensation expense | 106 |  |  | 106 |  |
Net income | 645 |  |  |  |  | 645
Ending Balance at Mar. 31, 2022 | 33,367 | $ 6 | $ 367 | 293,112 |  | (260,118)
Ending Balance (in shares) at Mar. 31, 2022 |  | 565 | 36,677,837 |  | 0 |
Beginning Balance at Dec. 31, 2021 | $ 32,639 | $ 6 | $ 366 | 293,030 |  | (260,763)
Begining Balance (in shares) at Dec. 31, 2021 |  | 565 | 36,574,702 |  | 0 |
Issuance of common stock from stock options awards, shares | 339,125 |  |  |  |  |
Net income | $ 5,523 |  |  |  |  |
Ending Balance at Sep. 30, 2022 | 38,272 | $ 6 | $ 369 | 293,433 | $ (296) | (255,240)
Ending Balance (in shares) at Sep. 30, 2022 |  | 565 | 36,932,177 |  | 183,699 |
Beginning Balance at Mar. 31, 2022 | 33,367 | $ 6 | $ 367 | 293,112 |  | (260,118)
Begining Balance (in shares) at Mar. 31, 2022 |  | 565 | 36,677,837 |  | 0 |
Issuance of common stock from stock option awards | 25 |  |  | 25 |  |
Issuance of common stock from stock options awards, shares |  |  | 56,250 |  |  |
Stock-based compensation expense | 108 |  |  | 108 |  |
Repurchase of common stock, shares |  |  |  |  | 71,512 |
Repurchase of common stock | (105) |  |  |  | $ (105) |
Net income | 2,578 |  |  |  |  | 2,578
Ending Balance at Jun. 30, 2022 | 35,973 | $ 6 | $ 367 | 293,245 | $ (105) | (257,540)
Ending Balance (in shares) at Jun. 30, 2022 |  | 565 | 36,734,087 |  | 71,512 |
Issuance of common stock from stock option awards | 20 |  | $ 1 | 19 |  |
Issuance of common stock from stock options awards, shares |  |  | 83,090 |  |  |
Issuance of common stock, shares |  |  | 115,000 |  |  |
Stock-based compensation expense | 170 |  |  | 170 |  |
Repurchase of common stock, shares |  |  |  |  | 112,187 |
Repurchase of common stock | (191) |  |  |  | $ (191) |
Net income | 2,300 |  |  |  |  |
Ending Balance at Sep. 30, 2022 | $ 38,272 | $ 6 | $ 369 | $ 293,433 | $ (296) | $ (255,240)
Ending Balance (in shares) at Sep. 30, 2022 |  | 565 | 36,932,177 |  | 183,699 |

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