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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Non-Controlling Interest [Member]
Total
Balance at Dec. 31, 2018 $ 34 $ 8,157 $ (3,675) $ 4,864 $ (89) $ 9,291
Balance (in shares) at Dec. 31, 2018 32,271,367          
Exercised and vested stock-based awards   221       221
Exercised and vested stock-based awards (in shares) 531,940          
Warrant exercises (in shares) 40,366          
Stock-based compensation expense   820       820
Treasury stock     (171)     (171)
Treasury stock (in shares) (52,000)          
Other (in shares) (8)          
Net income       9,492   9,492
Balance at Dec. 31, 2019 $ 34 9,198 (3,846) 14,356 (89) 19,653
Balance (in shares) at Dec. 31, 2019 32,791,665          
Exercised and vested stock-based awards $ 1 566       567
Exercised and vested stock-based awards (in shares) 776,733          
Stock issued for public offering, net of issuance costs $ 1 25,202       25,203
Stock issued for public offering, net of issuance costs (in shares) 1,250,000          
Stock-based compensation expense   2,681       2,681
Shares of common stock withheld to pay taxes on employees' equity awards   (412)       (412)
Shares of common stock withheld to pay taxes on employees' equity awards (in shares) (26,467)          
Deconsolidation of non-controlling interest         $ (89) (89)
Net income       9,074   9,074
Balance at Dec. 31, 2020 $ 36 $ 37,235 $ (3,846) $ 23,430   $ 56,855
Balance (in shares) at Dec. 31, 2020 34,791,931