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2 - Balance Sheet Details: Other Accrued Expenses (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Details    
Profit sharing plan contribution $ 277,743 $ 266,398
Property taxes 91,527 92,620
All other items 106,703 136,114
Other Accrued Expenses $ 475,973 $ 495,132