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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Treasury Stock
Retained Earnings
Non-Controlling Interest
Total
Balance at Dec. 31, 2017 $ 33 $ 7,612 $ (243) $ (2,411) $ (89) $ 4,902
Balance, shares at Dec. 31, 2017 32,778,040          
Adjustment for ASC 842 adoption at Dec. 31, 2017       (6)   (6)
Stock option exercises   86       86
Stock option exercises, shares 236,957          
Stock-based compensation expense   63       63
Treasury stock     (1,757)     (1,757)
Treasury stock, shares (408,254)          
Net income       1,920   1,920
Balance at Mar. 31, 2018 $ 33 7,761 (2,000) (497) (89) 5,208
Balance, shares at Mar. 31, 2018 32,606,743          
Adjusted Balance, shares 32,271,367          
Stock option exercises   67       67
Stock option exercises, shares 130,000          
Stock-based compensation expense   53       53
Treasury stock     (211)     (211)
Treasury stock, shares (474,767)          
Net income       2,418   2,418
Balance at Jun. 30, 2018 $ 33 7,881 (2,211) 1,921 (89) 7,535
Balance, shares at Jun. 30, 2018 32,261,976          
Adjusted Balance $ 34 8,157 (3,675) 4,864 (89) 9,291
Stock option exercises   8       8
Stock option exercises, shares 21,832          
Stock-based compensation expense   140       140
Treasury stock     (171)     (171)
Treasury stock, shares (52,000)          
Other (8)          
Net income       2,350   2,350
Balance at Mar. 31, 2019 $ 34 8,305 (3,846) 7,214 (89) 11,618
Balance, shares at Mar. 31, 2019 32,241,191          
Balance at Dec. 31, 2018           9,291
Warrant exercises (in shares) 40,366          
Treasury stock, shares (52,000)          
Balance at Jun. 30, 2019 $ 34 8,592 (3,846) 9,376 (89) 14,067
Balance, shares at Jun. 30, 2019 32,448,180          
Balance at Mar. 31, 2019 $ 34 8,305 (3,846) 7,214 (89) 11,618
Balance, shares at Mar. 31, 2019 32,241,191          
Stock option exercises   129       129
Stock option exercises, shares 166,623          
Warrant exercises (in shares) 40,366          
Stock-based compensation expense   158       158
Net income       2,162   2,162
Balance at Jun. 30, 2019 $ 34 $ 8,592 $ (3,846) $ 9,376 $ (89) $ 14,067
Balance, shares at Jun. 30, 2019 32,448,180