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Capital Stock - Additional Information (Details) - USD ($)
6 Months Ended 12 Months Ended
Apr. 17, 2015
Dec. 31, 2015
Dec. 31, 2014
Jun. 30, 2015
Sep. 30, 2015
Feb. 19, 2015
Jun. 30, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Capital stock, shares authorized   50,000,000 25,000 50,000,000      
Capital stock, par value $ 0.01 $ 0.01   $ 0.01      
Capital stock, shares issued   8,518,791   8,518,791      
Capital stock, shares outstanding   8,518,791   8,518,791      
Common stock, no par value            
Cancellation of treasury stock           1,000  
Options, Granted   0          
Total unrecognized compensation cost related to nonvested share based compensation   $ 458,274          
Expected weighted-average period of unrecognized compensation cost   1 year 1 month 6 days          
Total fair values shares vested   $ 0 $ 0        
2015 Stock Incentive and Compensation Plan              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Weighted average remaining contractual term (in years), grants   5 years          
2015 Stock Incentive and Compensation Plan | Maximum              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Number of options and shares available for grant to employees   1,278,000          
Common Stock              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Capital stock, shares outstanding   8,518,791   8,518,791 8,518,791   1,000
Shares exchanged to PGSC stockholders for cancellation of treasury stock       8,101,371      
Spinoff | Common Stock              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Shares exchanged to PGSC stockholders for cancellation of treasury stock 8,101,371