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Marketable Securities (Details) - USD ($)
Jun. 30, 2015
Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities $ 14,136,925 $ 14,841,418
U.S. Treasury notes and bonds    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 461,626 1,338,010
U.S. Agency issued mortgage-backed securities – variable rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 4,849,357 4,003,375
U.S. Agency notes and bonds – fixed rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 2,751,473 3,251,336
SBA loan pools – variable rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 1,339,469 1,413,697
Municipal bonds – VRDN    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 4,735,000 4,835,000
Level 1    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 5,196,626 6,173,010
Level 1 | U.S. Treasury notes and bonds    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 461,626 1,338,010
Level 1 | U.S. Agency issued mortgage-backed securities – variable rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 0 0
Level 1 | U.S. Agency notes and bonds – fixed rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 0 0
Level 1 | SBA loan pools – variable rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 0 0
Level 1 | Municipal bonds – VRDN    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 4,735,000 4,835,000
Level 2    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 8,940,299 8,668,408
Level 2 | U.S. Treasury notes and bonds    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 0 0
Level 2 | U.S. Agency issued mortgage-backed securities – variable rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 4,849,357 4,003,375
Level 2 | U.S. Agency notes and bonds – fixed rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 2,751,473 3,251,336
Level 2 | SBA loan pools – variable rate    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities 1,339,469 1,413,697
Level 2 | Municipal bonds – VRDN    
Schedule of Available-for-sale Securities [Line Items]    
Marketable securities $ 0 $ 0