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Consolidated Statement of Shareholders' Equity - USD ($)
Deferred Restricted Stock [Member]
Common Stock [Member]
Deferred Restricted Stock [Member]
Additional Paid-in Capital [Member]
Deferred Restricted Stock [Member]
Retained Earnings [Member]
Deferred Restricted Stock [Member]
Parent [Member]
Deferred Restricted Stock [Member]
Noncontrolling Interest [Member]
Deferred Restricted Stock [Member]
Restricted Stock [Member]
Common Stock [Member]
Restricted Stock [Member]
Additional Paid-in Capital [Member]
Restricted Stock [Member]
Retained Earnings [Member]
Restricted Stock [Member]
Parent [Member]
Restricted Stock [Member]
Noncontrolling Interest [Member]
Restricted Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Parent [Member]
Noncontrolling Interest [Member]
Total
Balances (in shares) at Dec. 31, 2020                         5,791,000          
Balances at Dec. 31, 2020                         $ 10,753,000 $ 7,024,000 $ 1,497,000 $ 19,274,000 $ 4,376,000 $ 23,650,000
Stock-based compensation expense (in shares)                         0          
Stock-based compensation expense                         $ 0 420,000 0 420,000 0 $ 420,000
Options exercised (in shares)                         5,000         22,000
Options exercised                         $ 5,000 0 0 5,000 0 $ 5,000
Issuance of restricted stock awards (in shares) 123,000           130,000                      
Issuance of restricted stock awards $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0            
Cash distributions to non-controlling interests                         0 0 0 0 (514,000) (514,000)
Net income                         $ 0 0 194,000 194,000 484,000 $ 678,000
Balances (in shares) at Dec. 31, 2021                         6,049,000         6,049,000
Balances at Dec. 31, 2021                         $ 10,758,000 7,444,000 1,691,000 19,893,000 4,346,000 $ 24,239,000
Stock-based compensation expense (in shares)                         0          
Stock-based compensation expense                         $ 0 399,000 0 399,000 0 $ 399,000
Options exercised (in shares)                         3,000         4,000
Options exercised                         $ 5,000 0 0 5,000 0 $ 5,000
Issuance of restricted stock awards (in shares)             132,000                      
Issuance of restricted stock awards             $ 0 $ 0 $ 0 $ 0 $ 0 $ 0            
Cash distributions to non-controlling interests                         0 0 0 0 (573,000) (573,000)
Net income                         $ 0 0 1,328,000 1,328,000 227,000 $ 1,555,000
Balances (in shares) at Dec. 31, 2022                         6,184,000         6,184,000
Balances at Dec. 31, 2022                         $ 10,763,000 $ 7,843,000 $ 3,019,000 $ 21,625,000 $ 4,000,000 $ 25,625,000