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Earnings (Loss) Per Share (Schedule of Computation of Numerator and Denominator in Earnings Per Share) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Numerator:                      
Net income (loss) from continuing operations $ (3,369,328) $ (3,316,286) $ (1,338,521) $ (1,187,553) $ (3,267,680) $ (2,501,752) $ (1,795,661) $ (3,255,903) $ (9,211,688) $ (10,820,996) $ (12,847,840)
Discontinued operations net of tax 2,396,981 1,349,351 771,709 1,147,136 1,030,568 837,731 1,050,211 863,714 5,665,177 3,782,224 4,798,025
Net income (loss)                 (3,546,511) (7,038,772) (8,049,815)
Net loss at subsidiary allocated to noncontrolling interests                 8,752 75,704 71,182
Net income (loss) attributable to common shareholders $ (960,706) $ (1,953,668) $ (549,507) $ (73,878) $ (2,220,097) $ (1,643,044) $ (720,688) $ (2,379,239) $ (3,537,759) $ (6,963,068) $ (7,978,633)
Denominator:                      
Weighted-average shares outstanding – basic (in shares)                 15,396,098 15,614,052 15,911,577
Dilutive effect of restricted stock and stock options (in shares)                 0 0 0
Weighted-average shares outstanding – diluted (in shares)                 15,396,098 15,614,052 15,911,577